22423131 has 12 divisors (see below), whose sum is σ = 32555952. Its totient is φ = 14871696.

The previous prime is 22423087. The next prime is 22423133. The reversal of 22423131 is 13132422.

It is not a de Polignac number, because 22423131 - 2⁶ = 22423067 is a prime.

It is a super-2 number, since 2×22423131² = 1005593607686322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (22423133) 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 11 ways as a sum of consecutive naturals, for example, 4551 + ... + 8096.

It is an arithmetic number, because the mean of its divisors is an integer number (2712996).

Almost surely, 2^22423131 is an apocalyptic number.

22423131 is a deficient number, since it is larger than the sum of its proper divisors (10132821).

22423131 is a wasteful number, since it uses less digits than its factorization.

22423131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12850 (or 12847 counting only the distinct ones).

The product of its digits is 288, while the sum is 18.

The square root of 22423131 is about 4735.3068538375. The cubic root of 22423131 is about 281.9889462998.

Adding to 22423131 its reverse (13132422), we get a palindrome (35555553).

The spelling of 22423131 in words is "twenty-two million, four hundred twenty-three thousand, one hundred thirty-one".