23512919 has 2 divisors, whose sum is σ = 23512920. Its totient is φ = 23512918.

The previous prime is 23512891. The next prime is 23512933. The reversal of 23512919 is 91921532.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23512919 is a prime.

It is a super-2 number, since 2×23512919² = 1105714719801122, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23512219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11756459 + 11756460.

It is an arithmetic number, because the mean of its divisors is an integer number (11756460).

Almost surely, 2^23512919 is an apocalyptic number.

23512919 is a deficient number, since it is larger than the sum of its proper divisors (1).

23512919 is an equidigital number, since it uses as much as digits as its factorization.

23512919 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4860, while the sum is 32.

The square root of 23512919 is about 4849.0121674419. The cubic root of 23512919 is about 286.4851944710.

The spelling of 23512919 in words is "twenty-three million, five hundred twelve thousand, nine hundred nineteen".