22715138 has 16 divisors (see below), whose sum is σ = 34594560. Its totient is φ = 11185200.

The previous prime is 22715123. The next prime is 22715153. The reversal of 22715138 is 83151722.

It is an interprime number because it is at equal distance from previous prime (22715123) and next prime (22715153).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 22715138.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47183 + ... + 47661.

It is an arithmetic number, because the mean of its divisors is an integer number (2162160).

Almost surely, 2^22715138 is an apocalyptic number.

22715138 is a deficient number, since it is larger than the sum of its proper divisors (11879422).

22715138 is a wasteful number, since it uses less digits than its factorization.

22715138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 793.

The product of its digits is 3360, while the sum is 29.

The square root of 22715138 is about 4766.0400753666. The cubic root of 22715138 is about 283.2077453407.

The spelling of 22715138 in words is "twenty-two million, seven hundred fifteen thousand, one hundred thirty-eight".