12813951 has 16 divisors (see below), whose sum is σ = 17819264. Its totient is φ = 8182944.

The previous prime is 12813929. The next prime is 12813959. The reversal of 12813951 is 15931821.

It is not a de Polignac number, because 12813951 - 2⁶ = 12813887 is a prime.

It is a Duffinian number.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12813959) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6576 + ... + 8298.

It is an arithmetic number, because the mean of its divisors is an integer number (1113704).

Almost surely, 2^12813951 is an apocalyptic number.

12813951 is a deficient number, since it is larger than the sum of its proper divisors (5005313).

12813951 is a wasteful number, since it uses less digits than its factorization.

12813951 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1830.

The product of its digits is 2160, while the sum is 30.

The square root of 12813951 is about 3579.6579445528. The cubic root of 12813951 is about 234.0063735571.

The spelling of 12813951 in words is "twelve million, eight hundred thirteen thousand, nine hundred fifty-one".