13231902 has 16 divisors (see below), whose sum is σ = 26569872. Its totient is φ = 4392960.

The previous prime is 13231901. The next prime is 13231913. The reversal of 13231902 is 20913231.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13231901) 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, 2749 + ... + 5832.

It is an arithmetic number, because the mean of its divisors is an integer number (1660617).

Almost surely, 2^13231902 is an apocalyptic number.

13231902 is an abundant number, since it is smaller than the sum of its proper divisors (13337970).

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

13231902 is a wasteful number, since it uses less digits than its factorization.

13231902 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8843.

The product of its (nonzero) digits is 324, while the sum is 21.

The square root of 13231902 is about 3637.5681436916. The cubic root of 13231902 is about 236.5233883367.

The spelling of 13231902 in words is "thirteen million, two hundred thirty-one thousand, nine hundred two".