22765117 has 2 divisors, whose sum is σ = 22765118. Its totient is φ = 22765116.

The previous prime is 22765111. The next prime is 22765133. The reversal of 22765117 is 71156722.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20985561 + 1779556 = 4581^2 + 1334^2 .

It is a cyclic number.

It is not a de Polignac number, because 22765117 - 2³ = 22765109 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22765111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11382558 + 11382559.

It is an arithmetic number, because the mean of its divisors is an integer number (11382559).

Almost surely, 2^22765117 is an apocalyptic number.

It is an amenable number.

22765117 is a deficient number, since it is larger than the sum of its proper divisors (1).

22765117 is an equidigital number, since it uses as much as digits as its factorization.

22765117 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5880, while the sum is 31.

The square root of 22765117 is about 4771.2804361094. The cubic root of 22765117 is about 283.4153025429.

The spelling of 22765117 in words is "twenty-two million, seven hundred sixty-five thousand, one hundred seventeen".