12256751 has 4 divisors (see below), whose sum is σ = 13199592. Its totient is φ = 11313912.

The previous prime is 12256747. The next prime is 12256759. The reversal of 12256751 is 15765221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 15765221 = 53 ⋅297457.

It is a cyclic number.

It is not a de Polignac number, because 12256751 - 2² = 12256747 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12256759) 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, 471401 + ... + 471426.

It is an arithmetic number, because the mean of its divisors is an integer number (3299898).

Almost surely, 2^12256751 is an apocalyptic number.

12256751 is a deficient number, since it is larger than the sum of its proper divisors (942841).

12256751 is an equidigital number, since it uses as much as digits as its factorization.

12256751 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 942840.

The product of its digits is 4200, while the sum is 29.

The square root of 12256751 is about 3500.9642957334. The cubic root of 12256751 is about 230.5641538403.

The spelling of 12256751 in words is "twelve million, two hundred fifty-six thousand, seven hundred fifty-one".