22901497 has 2 divisors, whose sum is σ = 22901498. Its totient is φ = 22901496.

The previous prime is 22901477. The next prime is 22901513. The reversal of 22901497 is 79410922.

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., 22619536 + 281961 = 4756^2 + 531^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22901497 is a prime.

It is not a weakly prime, because it can be changed into another prime (22901407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11450748 + 11450749.

It is an arithmetic number, because the mean of its divisors is an integer number (11450749).

Almost surely, 2^22901497 is an apocalyptic number.

It is an amenable number.

22901497 is a deficient number, since it is larger than the sum of its proper divisors (1).

22901497 is an equidigital number, since it uses as much as digits as its factorization.

22901497 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9072, while the sum is 34.

The square root of 22901497 is about 4785.5508564845. The cubic root of 22901497 is about 283.9801323469.

The spelling of 22901497 in words is "twenty-two million, nine hundred one thousand, four hundred ninety-seven".