135724975 has 12 divisors (see below), whose sum is σ = 173728960. Its totient is φ = 105076800.

The previous prime is 135724973. The next prime is 135725069. The reversal of 135724975 is 579427531.

It is not a de Polignac number, because 135724975 - 2¹ = 135724973 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135724973) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 86790 + ... + 88339.

Almost surely, 2^135724975 is an apocalyptic number.

135724975 is a deficient number, since it is larger than the sum of its proper divisors (38003985).

135724975 is a wasteful number, since it uses less digits than its factorization.

135724975 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175170 (or 175165 counting only the distinct ones).

The product of its digits is 264600, while the sum is 43.

The square root of 135724975 is about 11650.1062226917. The cubic root of 135724975 is about 513.9094338457.

The spelling of 135724975 in words is "one hundred thirty-five million, seven hundred twenty-four thousand, nine hundred seventy-five".