12971751 has 16 divisors (see below), whose sum is σ = 18775680. Its totient is φ = 7918560.

The previous prime is 12971743. The next prime is 12971797. The reversal of 12971751 is 15717921.

It is not a de Polignac number, because 12971751 - 2³ = 12971743 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12971351) 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, 3840 + ... + 6378.

It is an arithmetic number, because the mean of its divisors is an integer number (1173480).

Almost surely, 2^12971751 is an apocalyptic number.

12971751 is a deficient number, since it is larger than the sum of its proper divisors (5803929).

12971751 is a wasteful number, since it uses less digits than its factorization.

12971751 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2686.

The product of its digits is 4410, while the sum is 33.

The square root of 12971751 is about 3601.6317135432. The cubic root of 12971751 is about 234.9630302489.

The spelling of 12971751 in words is "twelve million, nine hundred seventy-one thousand, seven hundred fifty-one".