12512923 has 4 divisors (see below), whose sum is σ = 12540528. Its totient is φ = 12485320.

The previous prime is 12512911. The next prime is 12512939. The reversal of 12512923 is 32921521.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32921521 = 839 ⋅39239.

It is a cyclic number.

It is not a de Polignac number, because 12512923 - 2¹⁷ = 12381851 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12512953) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13111 + ... + 14032.

It is an arithmetic number, because the mean of its divisors is an integer number (3135132).

Almost surely, 2^12512923 is an apocalyptic number.

12512923 is a deficient number, since it is larger than the sum of its proper divisors (27605).

12512923 is an equidigital number, since it uses as much as digits as its factorization.

12512923 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27604.

The product of its digits is 1080, while the sum is 25.

The square root of 12512923 is about 3537.3610220050. The cubic root of 12512923 is about 232.1593918051.

The spelling of 12512923 in words is "twelve million, five hundred twelve thousand, nine hundred twenty-three".