22456131 has 4 divisors (see below), whose sum is σ = 29941512. Its totient is φ = 14970752.

The previous prime is 22456117. The next prime is 22456169. The reversal of 22456131 is 13165422.

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 22456131 - 2⁶ = 22456067 is a prime.

It is a super-2 number, since 2×22456131² = 1008555638978322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (22456111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3742686 + ... + 3742691.

It is an arithmetic number, because the mean of its divisors is an integer number (7485378).

Almost surely, 2^22456131 is an apocalyptic number.

22456131 is a deficient number, since it is larger than the sum of its proper divisors (7485381).

22456131 is an equidigital number, since it uses as much as digits as its factorization.

22456131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7485380.

The product of its digits is 1440, while the sum is 24.

The square root of 22456131 is about 4738.7900354415. The cubic root of 22456131 is about 282.1272123599.

The spelling of 22456131 in words is "twenty-two million, four hundred fifty-six thousand, one hundred thirty-one".