13646013 has 4 divisors (see below), whose sum is σ = 18194688. Its totient is φ = 9097340.

The previous prime is 13645997. The next prime is 13646029. The reversal of 13646013 is 31064631.

13646013 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 an interprime number because it is at equal distance from previous prime (13645997) and next prime (13646029).

It is a cyclic number.

It is not a de Polignac number, because 13646013 - 2⁴ = 13645997 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13646033) 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, 2274333 + ... + 2274338.

It is an arithmetic number, because the mean of its divisors is an integer number (4548672).

Almost surely, 2^13646013 is an apocalyptic number.

It is an amenable number.

13646013 is a deficient number, since it is larger than the sum of its proper divisors (4548675).

13646013 is an equidigital number, since it uses as much as digits as its factorization.

13646013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4548674.

The product of its (nonzero) digits is 1296, while the sum is 24.

The square root of 13646013 is about 3694.0510283427. The cubic root of 13646013 is about 238.9655301794.

The spelling of 13646013 in words is "thirteen million, six hundred forty-six thousand, thirteen".