23159849 has 2 divisors, whose sum is σ = 23159850. Its totient is φ = 23159848.

The previous prime is 23159839. The next prime is 23159863. The reversal of 23159849 is 94895132.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 23088025 + 71824 = 4805^2 + 268^2 .

It is a cyclic number.

It is not a de Polignac number, because 23159849 - 2⁴ = 23159833 is a prime.

It is not a weakly prime, because it can be changed into another prime (23159839) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11579924 + 11579925.

It is an arithmetic number, because the mean of its divisors is an integer number (11579925).

Almost surely, 2^23159849 is an apocalyptic number.

It is an amenable number.

23159849 is a deficient number, since it is larger than the sum of its proper divisors (1).

23159849 is an equidigital number, since it uses as much as digits as its factorization.

23159849 is an evil number, because the sum of its binary digits is even.

The product of its digits is 77760, while the sum is 41.

The square root of 23159849 is about 4812.4680778162. The cubic root of 23159849 is about 285.0440026447.

The spelling of 23159849 in words is "twenty-three million, one hundred fifty-nine thousand, eight hundred forty-nine".