12599913 has 4 divisors (see below), whose sum is σ = 16799888. Its totient is φ = 8399940.

The previous prime is 12599911. The next prime is 12599921. The reversal of 12599913 is 31999521.

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 not a de Polignac number, because 12599913 - 2¹ = 12599911 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12599911) 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, 2099983 + ... + 2099988.

It is an arithmetic number, because the mean of its divisors is an integer number (4199972).

Almost surely, 2^12599913 is an apocalyptic number.

It is an amenable number.

12599913 is a deficient number, since it is larger than the sum of its proper divisors (4199975).

12599913 is an equidigital number, since it uses as much as digits as its factorization.

12599913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4199974.

The product of its digits is 21870, while the sum is 39.

The square root of 12599913 is about 3549.6356151019. The cubic root of 12599913 is about 232.6961415721.

The spelling of 12599913 in words is "twelve million, five hundred ninety-nine thousand, nine hundred thirteen".