13056645 has 16 divisors (see below), whose sum is σ = 23875200. Its totient is φ = 5968704.

The previous prime is 13056619. The next prime is 13056653. The reversal of 13056645 is 54665031.

13056645 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13056645 - 2¹¹ = 13054597 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 62070 + ... + 62279.

It is an arithmetic number, because the mean of its divisors is an integer number (1492200).

Almost surely, 2^13056645 is an apocalyptic number.

13056645 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13056645 is a deficient number, since it is larger than the sum of its proper divisors (10818555).

13056645 is a wasteful number, since it uses less digits than its factorization.

13056645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124364.

The product of its (nonzero) digits is 10800, while the sum is 30.

The square root of 13056645 is about 3613.3979852765. The cubic root of 13056645 is about 235.4744902296.

The spelling of 13056645 in words is "thirteen million, fifty-six thousand, six hundred forty-five".