135725513 has 16 divisors (see below), whose sum is σ = 170111616. Its totient is φ = 105200640.

The previous prime is 135725453. The next prime is 135725561. The reversal of 135725513 is 315527531.

It is a cyclic number.

It is not a de Polignac number, because 135725513 - 2⁶ = 135725449 is a prime.

It is a super-2 number, since 2×135725513² = 36842829758226338, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 135725513.

It is not an unprimeable number, because it can be changed into a prime (135725573) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10295 + ... + 19427.

It is an arithmetic number, because the mean of its divisors is an integer number (10631976).

Almost surely, 2^135725513 is an apocalyptic number.

It is an amenable number.

135725513 is a deficient number, since it is larger than the sum of its proper divisors (34386103).

135725513 is a wasteful number, since it uses less digits than its factorization.

135725513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9344.

The product of its digits is 15750, while the sum is 32.

The square root of 135725513 is about 11650.1293125870. The cubic root of 135725513 is about 513.9101128731.

The spelling of 135725513 in words is "one hundred thirty-five million, seven hundred twenty-five thousand, five hundred thirteen".