23399161 has 2 divisors, whose sum is σ = 23399162. Its totient is φ = 23399160.

The previous prime is 23399149. The next prime is 23399179. The reversal of 23399161 is 16199332.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 23222761 + 176400 = 4819^2 + 420^2 .

It is a cyclic number.

It is not a de Polignac number, because 23399161 - 2⁹ = 23398649 is a prime.

It is equal to p_1471777 and since 23399161 and 1471777 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (23309161) 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, 11699580 + 11699581.

It is an arithmetic number, because the mean of its divisors is an integer number (11699581).

Almost surely, 2^23399161 is an apocalyptic number.

It is an amenable number.

23399161 is a deficient number, since it is larger than the sum of its proper divisors (1).

23399161 is an equidigital number, since it uses as much as digits as its factorization.

23399161 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8748, while the sum is 34.

The square root of 23399161 is about 4837.2679272498. The cubic root of 23399161 is about 286.0224321004.

The spelling of 23399161 in words is "twenty-three million, three hundred ninety-nine thousand, one hundred sixty-one".