22957261 has 2 divisors, whose sum is σ = 22957262. Its totient is φ = 22957260.

The previous prime is 22957247. The next prime is 22957307. The reversal of 22957261 is 16275922.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13003236 + 9954025 = 3606^2 + 3155^2 .

It is a cyclic number.

It is not a de Polignac number, because 22957261 - 2⁷ = 22957133 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22957201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11478630 + 11478631.

It is an arithmetic number, because the mean of its divisors is an integer number (11478631).

Almost surely, 2^22957261 is an apocalyptic number.

It is an amenable number.

22957261 is a deficient number, since it is larger than the sum of its proper divisors (1).

22957261 is an equidigital number, since it uses as much as digits as its factorization.

22957261 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15120, while the sum is 34.

The square root of 22957261 is about 4791.3736026321. The cubic root of 22957261 is about 284.2104379942.

The spelling of 22957261 in words is "twenty-two million, nine hundred fifty-seven thousand, two hundred sixty-one".