12811902 has 16 divisors (see below), whose sum is σ = 26107920. Its totient is φ = 4189952.

The previous prime is 12811889. The next prime is 12811907. The reversal of 12811902 is 20911821.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12811907) 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, 19827 + ... + 20462.

It is an arithmetic number, because the mean of its divisors is an integer number (1631745).

Almost surely, 2^12811902 is an apocalyptic number.

12811902 is an abundant number, since it is smaller than the sum of its proper divisors (13296018).

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

12811902 is a wasteful number, since it uses less digits than its factorization.

12811902 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40347.

The product of its (nonzero) digits is 288, while the sum is 24.

The square root of 12811902 is about 3579.3717325810. The cubic root of 12811902 is about 233.9939000528.

The spelling of 12811902 in words is "twelve million, eight hundred eleven thousand, nine hundred two".