12615923 has 2 divisors, whose sum is σ = 12615924. Its totient is φ = 12615922.

The previous prime is 12615913. The next prime is 12615929. The reversal of 12615923 is 32951621.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12615923 - 2⁴ = 12615907 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (12615929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6307961 + 6307962.

It is an arithmetic number, because the mean of its divisors is an integer number (6307962).

Almost surely, 2^12615923 is an apocalyptic number.

12615923 is a deficient number, since it is larger than the sum of its proper divisors (1).

12615923 is an equidigital number, since it uses as much as digits as its factorization.

12615923 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3240, while the sum is 29.

The square root of 12615923 is about 3551.8900602355. The cubic root of 12615923 is about 232.7946578192.

The spelling of 12615923 in words is "twelve million, six hundred fifteen thousand, nine hundred twenty-three".