22497313 has 2 divisors, whose sum is σ = 22497314. Its totient is φ = 22497312.

The previous prime is 22497287. The next prime is 22497323. The reversal of 22497313 is 31379422.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19784704 + 2712609 = 4448^2 + 1647^2 .

It is a cyclic number.

It is not a de Polignac number, because 22497313 - 2¹³ = 22489121 is a prime.

It is a super-2 number, since 2×22497313² = 1012258184439938, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (22497323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11248656 + 11248657.

It is an arithmetic number, because the mean of its divisors is an integer number (11248657).

Almost surely, 2^22497313 is an apocalyptic number.

It is an amenable number.

22497313 is a deficient number, since it is larger than the sum of its proper divisors (1).

22497313 is an equidigital number, since it uses as much as digits as its factorization.

22497313 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9072, while the sum is 31.

The square root of 22497313 is about 4743.1332471268. The cubic root of 22497313 is about 282.2995701555.

The spelling of 22497313 in words is "twenty-two million, four hundred ninety-seven thousand, three hundred thirteen".