12813451 has 8 divisors (see below), whose sum is σ = 14943200. Its totient is φ = 10982664.

The previous prime is 12813413. The next prime is 12813487. The reversal of 12813451 is 15431821.

It is a de Polignac number, because none of the positive numbers 2^k-12813451 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12810451) 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, 18336 + ... + 19021.

It is an arithmetic number, because the mean of its divisors is an integer number (1867900).

Almost surely, 2^12813451 is an apocalyptic number.

12813451 is a deficient number, since it is larger than the sum of its proper divisors (2129749).

12813451 is an frugal number, since it uses more digits than its factorization.

12813451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37378 (or 37364 counting only the distinct ones).

The product of its digits is 960, while the sum is 25.

The square root of 12813451 is about 3579.5881047964. The cubic root of 12813451 is about 234.0033298769.

The spelling of 12813451 in words is "twelve million, eight hundred thirteen thousand, four hundred fifty-one".