22624139 has 2 divisors, whose sum is σ = 22624140. Its totient is φ = 22624138.

The previous prime is 22624109. The next prime is 22624159. The reversal of 22624139 is 93142622.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22624139 - 2⁸ = 22623883 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (22624109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11312069 + 11312070.

It is an arithmetic number, because the mean of its divisors is an integer number (11312070).

Almost surely, 2^22624139 is an apocalyptic number.

22624139 is a deficient number, since it is larger than the sum of its proper divisors (1).

22624139 is an equidigital number, since it uses as much as digits as its factorization.

22624139 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5184, while the sum is 29.

The square root of 22624139 is about 4756.4838904384. The cubic root of 22624139 is about 282.8290534901.

The spelling of 22624139 in words is "twenty-two million, six hundred twenty-four thousand, one hundred thirty-nine".