12813605 has 8 divisors (see below), whose sum is σ = 17572992. Its totient is φ = 8786448.

The previous prime is 12813601. The next prime is 12813629. The reversal of 12813605 is 50631821.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12813605 - 2² = 12813601 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12813601) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 183017 + ... + 183086.

It is an arithmetic number, because the mean of its divisors is an integer number (2196624).

Almost surely, 2^12813605 is an apocalyptic number.

It is an amenable number.

12813605 is a deficient number, since it is larger than the sum of its proper divisors (4759387).

12813605 is an equidigital number, since it uses as much as digits as its factorization.

12813605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 366115.

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 12813605 is about 3579.6096155866. The cubic root of 12813605 is about 234.0042673388.

The spelling of 12813605 in words is "twelve million, eight hundred thirteen thousand, six hundred five".