22951157 has 2 divisors, whose sum is σ = 22951158. Its totient is φ = 22951156.

The previous prime is 22951147. The next prime is 22951163. The reversal of 22951157 is 75115922.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19439281 + 3511876 = 4409^2 + 1874^2 .

It is a cyclic number.

It is not a de Polignac number, because 22951157 - 2⁴ = 22951141 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22951147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11475578 + 11475579.

It is an arithmetic number, because the mean of its divisors is an integer number (11475579).

Almost surely, 2^22951157 is an apocalyptic number.

It is an amenable number.

22951157 is a deficient number, since it is larger than the sum of its proper divisors (1).

22951157 is an equidigital number, since it uses as much as digits as its factorization.

22951157 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6300, while the sum is 32.

The square root of 22951157 is about 4790.7365821969. The cubic root of 22951157 is about 284.1852466282.

The spelling of 22951157 in words is "twenty-two million, nine hundred fifty-one thousand, one hundred fifty-seven".