135537536 has 32 divisors (see below), whose sum is σ = 275124600. Its totient is φ = 66486784.

The previous prime is 135537529. The next prime is 135537539. The reversal of 135537536 is 635735531.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (32).

It is a self number, because there is not a number n which added to its sum of digits gives 135537536.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135537539) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3206 + ... + 16773.

Almost surely, 2^135537536 is an apocalyptic number.

135537536 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

135537536 is an abundant number, since it is smaller than the sum of its proper divisors (139587064).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

135537536 is an equidigital number, since it uses as much as digits as its factorization.

135537536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20046 (or 20034 counting only the distinct ones).

The product of its digits is 141750, while the sum is 38.

The square root of 135537536 is about 11642.0589244343. The cubic root of 135537536 is about 513.6727516692.

The spelling of 135537536 in words is "one hundred thirty-five million, five hundred thirty-seven thousand, five hundred thirty-six".