23145923 has 2 divisors, whose sum is σ = 23145924. Its totient is φ = 23145922.

The previous prime is 23145907. The next prime is 23145931. The reversal of 23145923 is 32954132.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 23145923 - 2⁴ = 23145907 is a prime.

It is not a weakly prime, because it can be changed into another prime (23145943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11572961 + 11572962.

It is an arithmetic number, because the mean of its divisors is an integer number (11572962).

Almost surely, 2^23145923 is an apocalyptic number.

23145923 is a deficient number, since it is larger than the sum of its proper divisors (1).

23145923 is an equidigital number, since it uses as much as digits as its factorization.

23145923 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6480, while the sum is 29.

The square root of 23145923 is about 4811.0209935106. The cubic root of 23145923 is about 284.9868589406.

The spelling of 23145923 in words is "twenty-three million, one hundred forty-five thousand, nine hundred twenty-three".