A program to check for sum-product numbers was added to the MBNA. There are only four sum-products: 0, 1,

`and 144. nBABs existed for 0, 1, 144 and now there is a nBAB for`

135`.`

135MathBabbler Number Analyst (MBNA) output: ========================================= 135 is a natural, whole, integer 135 is odd 135 proper divisors are: 1,3,5,9,15,27,45, 135 is deficient (sum of divisors is 105) 135 is unhappy 135 is a Harshad number 135 is not prime 135 has the prime factors: 3*3*3*5 (sum=14) 135 sum of prime factors is: 14 135 is a lucky number 135 is a sum-product number 135 in octal is 0207 135 in hexadecimal is 0x87 135 in binary is 10000111 (is evil) 135 nearest square numbers: -14...9 (121...144 [12]) sqrt(135) = 11.619 ln(135) = 4.90527 log(135) = 2.13033 135 reciprocal is .00740740740740740740740740740740 135! is 2.69047e+230 135 is 42.9718 Pi years 135 is 6 score and 15 years 135 written as a Roman numeral is CXXXV

`[Wikipedia]`

`"equals the sum of consecutive powers of its digits. (175, 518, and 598 also have this property)."`

135135= 1^1 + 3^2 + 5^3

`[Wikipedia]`

MathBabbler hasn't confirmed this, but the Wikipedia claims there are`prime numbers between 1000 and 2000.`

135

**Creator:** Gerald Thurman
[gthurman@gmail.com]

**Created:** 09 May 2009

This work is licensed under a Creative Commons Attribution 3.0 United States License.