13072536 has 32 divisors (see below), whose sum is σ = 36313200. Its totient is φ = 4357440.

The previous prime is 13072529. The next prime is 13072537. The reversal of 13072536 is 63527031.

It is a happy number.

13072536 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13072537) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30045 + ... + 30476.

Almost surely, 2^13072536 is an apocalyptic number.

It is an amenable number.

13072536 is an abundant number, since it is smaller than the sum of its proper divisors (23240664).

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

13072536 is a wasteful number, since it uses less digits than its factorization.

13072536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60536 (or 60526 counting only the distinct ones).

The product of its (nonzero) digits is 3780, while the sum is 27.

The square root of 13072536 is about 3615.5962163936. The cubic root of 13072536 is about 235.5699820417.

Adding to 13072536 its reverse (63527031), we get a palindrome (76599567).

The spelling of 13072536 in words is "thirteen million, seventy-two thousand, five hundred thirty-six".