22864157 has 2 divisors, whose sum is σ = 22864158. Its totient is φ = 22864156.

The previous prime is 22864141. The next prime is 22864159. The reversal of 22864157 is 75146822.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13060996 + 9803161 = 3614^2 + 3131^2 .

It is a cyclic number.

It is not a de Polignac number, because 22864157 - 2⁴ = 22864141 is a prime.

Together with 22864159, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22864159) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11432078 + 11432079.

It is an arithmetic number, because the mean of its divisors is an integer number (11432079).

Almost surely, 2^22864157 is an apocalyptic number.

It is an amenable number.

22864157 is a deficient number, since it is larger than the sum of its proper divisors (1).

22864157 is an equidigital number, since it uses as much as digits as its factorization.

22864157 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 26880, while the sum is 35.

The square root of 22864157 is about 4781.6479376884. The cubic root of 22864157 is about 283.8257088696.

The spelling of 22864157 in words is "twenty-two million, eight hundred sixty-four thousand, one hundred fifty-seven".