12696751 has 4 divisors (see below), whose sum is σ = 13134600. Its totient is φ = 12258904.

The previous prime is 12696709. The next prime is 12696781. The reversal of 12696751 is 15769621.

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

It is a cyclic number.

It is not a de Polignac number, because 12696751 - 2⁹ = 12696239 is a prime.

It is a super-2 number, since 2×12696751² = 322414971912002, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12696751.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12696781) 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, 218881 + ... + 218938.

It is an arithmetic number, because the mean of its divisors is an integer number (3283650).

Almost surely, 2^12696751 is an apocalyptic number.

12696751 is a deficient number, since it is larger than the sum of its proper divisors (437849).

12696751 is an equidigital number, since it uses as much as digits as its factorization.

12696751 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 437848.

The product of its digits is 22680, while the sum is 37.

The square root of 12696751 is about 3563.2500613906. The cubic root of 12696751 is about 233.2907579916.

The spelling of 12696751 in words is "twelve million, six hundred ninety-six thousand, seven hundred fifty-one".