13901538 has 32 divisors (see below), whose sum is σ = 31887360. Its totient is φ = 3957840.

The previous prime is 13901509. The next prime is 13901549. The reversal of 13901538 is 83510931.

It is a happy number.

13901538 is digitally balanced in base 2, base 4 and base 8, because in such bases it contains all the possibile digits an equal number of times.

13901538 is strictly pandigital in base 8.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19773 + ... + 20463.

It is an arithmetic number, because the mean of its divisors is an integer number (996480).

Almost surely, 2^13901538 is an apocalyptic number.

13901538 is an abundant number, since it is smaller than the sum of its proper divisors (17985822).

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

13901538 is a wasteful number, since it uses less digits than its factorization.

13901538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1182.

The product of its (nonzero) digits is 3240, while the sum is 30.

The square root of 13901538 is about 3728.4766326209. The cubic root of 13901538 is about 240.4478789431.

The spelling of 13901538 in words is "thirteen million, nine hundred one thousand, five hundred thirty-eight".