13051645 has 8 divisors (see below), whose sum is σ = 15814656. Its totient is φ = 10339536.

The previous prime is 13051637. The next prime is 13051657. The reversal of 13051645 is 54615031.

13051645 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 13051645 - 2³ = 13051637 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12157 + ... + 13186.

It is an arithmetic number, because the mean of its divisors is an integer number (1976832).

Almost surely, 2^13051645 is an apocalyptic number.

It is an amenable number.

13051645 is a deficient number, since it is larger than the sum of its proper divisors (2763011).

13051645 is a wasteful number, since it uses less digits than its factorization.

13051645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25451.

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 13051645 is about 3612.7060494870. The cubic root of 13051645 is about 235.4444283269. Note that the first 4 decimals are identical.

Adding to 13051645 its reverse (54615031), we get a palindrome (67666676).

The spelling of 13051645 in words is "thirteen million, fifty-one thousand, six hundred forty-five".