12913874 has 16 divisors (see below), whose sum is σ = 20421720. Its totient is φ = 6115200.

The previous prime is 12913871. The next prime is 12913877. The reversal of 12913874 is 47831921.

It is an interprime number because it is at equal distance from previous prime (12913871) and next prime (12913877).

It can be written as a sum of positive squares in 4 ways, for example, as 9517225 + 3396649 = 3085^2 + 1843^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12913871) 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, 974 + ... + 5174.

Almost surely, 2^12913874 is an apocalyptic number.

12913874 is a deficient number, since it is larger than the sum of its proper divisors (7507846).

12913874 is a wasteful number, since it uses less digits than its factorization.

12913874 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4285.

The product of its digits is 12096, while the sum is 35.

The square root of 12913874 is about 3593.5879006920. The cubic root of 12913874 is about 234.6130587163.

The spelling of 12913874 in words is "twelve million, nine hundred thirteen thousand, eight hundred seventy-four".