22646131 has 2 divisors, whose sum is σ = 22646132. Its totient is φ = 22646130.

The previous prime is 22646093. The next prime is 22646149. The reversal of 22646131 is 13164622.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22646131 - 2¹⁹ = 22121843 is a prime.

It is a super-2 number, since 2×22646131² = 1025694498538322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 22646096 and 22646105.

It is not a weakly prime, because it can be changed into another prime (22646161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11323065 + 11323066.

It is an arithmetic number, because the mean of its divisors is an integer number (11323066).

Almost surely, 2^22646131 is an apocalyptic number.

22646131 is a deficient number, since it is larger than the sum of its proper divisors (1).

22646131 is an equidigital number, since it uses as much as digits as its factorization.

22646131 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1728, while the sum is 25.

The square root of 22646131 is about 4758.7951206161. The cubic root of 22646131 is about 282.9206659965.

The spelling of 22646131 in words is "twenty-two million, six hundred forty-six thousand, one hundred thirty-one".