23164261 has 2 divisors, whose sum is σ = 23164262. Its totient is φ = 23164260.

The previous prime is 23164259. The next prime is 23164277. The reversal of 23164261 is 16246132.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20702500 + 2461761 = 4550^2 + 1569^2 .

It is a cyclic number.

It is not a de Polignac number, because 23164261 - 2¹ = 23164259 is a prime.

It is a super-2 number, since 2×23164261² = 1073165975352242, which contains 22 as substring.

Together with 23164259, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23164231) 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, 11582130 + 11582131.

It is an arithmetic number, because the mean of its divisors is an integer number (11582131).

Almost surely, 2^23164261 is an apocalyptic number.

It is an amenable number.

23164261 is a deficient number, since it is larger than the sum of its proper divisors (1).

23164261 is an equidigital number, since it uses as much as digits as its factorization.

23164261 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1728, while the sum is 25.

The square root of 23164261 is about 4812.9264486381. The cubic root of 23164261 is about 285.0621019896.

The spelling of 23164261 in words is "twenty-three million, one hundred sixty-four thousand, two hundred sixty-one".