12913361 has 4 divisors (see below), whose sum is σ = 12940800. Its totient is φ = 12885924.

The previous prime is 12913337. The next prime is 12913363. The reversal of 12913361 is 16331921.

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 12913361 - 2²² = 8719057 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12913361.

It is not an unprimeable number, because it can be changed into a prime (12913363) 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, 13001 + ... + 13958.

It is an arithmetic number, because the mean of its divisors is an integer number (3235200).

Almost surely, 2^12913361 is an apocalyptic number.

It is an amenable number.

12913361 is a deficient number, since it is larger than the sum of its proper divisors (27439).

12913361 is an equidigital number, since it uses as much as digits as its factorization.

12913361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27438.

The product of its digits is 972, while the sum is 26.

The square root of 12913361 is about 3593.5165228506. The cubic root of 12913361 is about 234.6099520293.

The spelling of 12913361 in words is "twelve million, nine hundred thirteen thousand, three hundred sixty-one".