12937251 has 4 divisors (see below), whose sum is σ = 17249672. Its totient is φ = 8624832.

The previous prime is 12937241. The next prime is 12937259. The reversal of 12937251 is 15273921.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 12937251 - 2¹⁰ = 12936227 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12937259) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2156206 + ... + 2156211.

It is an arithmetic number, because the mean of its divisors is an integer number (4312418).

Almost surely, 2^12937251 is an apocalyptic number.

12937251 is a deficient number, since it is larger than the sum of its proper divisors (4312421).

12937251 is an equidigital number, since it uses as much as digits as its factorization.

12937251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4312420.

The product of its digits is 3780, while the sum is 30.

The square root of 12937251 is about 3596.8390289253. The cubic root of 12937251 is about 234.7545407476.

The spelling of 12937251 in words is "twelve million, nine hundred thirty-seven thousand, two hundred fifty-one".