22899157 has 2 divisors, whose sum is σ = 22899158. Its totient is φ = 22899156.

The previous prime is 22899143. The next prime is 22899179. The reversal of 22899157 is 75199822.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21613201 + 1285956 = 4649^2 + 1134^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22899157 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22899757) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11449578 + 11449579.

It is an arithmetic number, because the mean of its divisors is an integer number (11449579).

Almost surely, 2^22899157 is an apocalyptic number.

It is an amenable number.

22899157 is a deficient number, since it is larger than the sum of its proper divisors (1).

22899157 is an equidigital number, since it uses as much as digits as its factorization.

22899157 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 90720, while the sum is 43.

The square root of 22899157 is about 4785.3063642780. The cubic root of 22899157 is about 283.9704599640.

The spelling of 22899157 in words is "twenty-two million, eight hundred ninety-nine thousand, one hundred fifty-seven".