22597129 has 2 divisors, whose sum is σ = 22597130. Its totient is φ = 22597128.

The previous prime is 22597123. The next prime is 22597151. The reversal of 22597129 is 92179522.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22581504 + 15625 = 4752^2 + 125^2 .

It is a cyclic number.

It is not a de Polignac number, because 22597129 - 2¹⁵ = 22564361 is a prime.

It is not a weakly prime, because it can be changed into another prime (22597123) by changing a digit.

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 as a sum of consecutive naturals, namely, 11298564 + 11298565.

It is an arithmetic number, because the mean of its divisors is an integer number (11298565).

Almost surely, 2^22597129 is an apocalyptic number.

It is an amenable number.

22597129 is a deficient number, since it is larger than the sum of its proper divisors (1).

22597129 is an equidigital number, since it uses as much as digits as its factorization.

22597129 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 22680, while the sum is 37.

The square root of 22597129 is about 4753.6437603169. The cubic root of 22597129 is about 282.7164561327.

The spelling of 22597129 in words is "twenty-two million, five hundred ninety-seven thousand, one hundred twenty-nine".