12923513 has 4 divisors (see below), whose sum is σ = 13049088. Its totient is φ = 12797940.

The previous prime is 12923509. The next prime is 12923527. The reversal of 12923513 is 31532921.

12923513 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12923513 - 2² = 12923509 is a prime.

It is a super-2 number, since 2×12923513² = 334034376522338, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12923593) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 62633 + ... + 62838.

It is an arithmetic number, because the mean of its divisors is an integer number (3262272).

Almost surely, 2^12923513 is an apocalyptic number.

It is an amenable number.

12923513 is a deficient number, since it is larger than the sum of its proper divisors (125575).

12923513 is a wasteful number, since it uses less digits than its factorization.

12923513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125574.

The product of its digits is 1620, while the sum is 26.

The square root of 12923513 is about 3594.9287892808. The cubic root of 12923513 is about 234.6714164396.

The spelling of 12923513 in words is "twelve million, nine hundred twenty-three thousand, five hundred thirteen".