135529537 has 16 divisors (see below), whose sum is σ = 161417088. Its totient is φ = 112164480.

The previous prime is 135529531. The next prime is 135529553. The reversal of 135529537 is 735925531.

It is a cyclic number.

It is not a de Polignac number, because 135529537 - 2¹¹ = 135527489 is a prime.

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 135529537.

It is not an unprimeable number, because it can be changed into a prime (135529531) 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, 3948 + ... + 16930.

It is an arithmetic number, because the mean of its divisors is an integer number (10088568).

Almost surely, 2^135529537 is an apocalyptic number.

It is an amenable number.

135529537 is a deficient number, since it is larger than the sum of its proper divisors (25887551).

135529537 is a wasteful number, since it uses less digits than its factorization.

135529537 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13080.

The product of its digits is 141750, while the sum is 40.

The square root of 135529537 is about 11641.7153804755. The cubic root of 135529537 is about 513.6626463525.

The spelling of 135529537 in words is "one hundred thirty-five million, five hundred twenty-nine thousand, five hundred thirty-seven".