13020745 has 16 divisors (see below), whose sum is σ = 15979392. Its totient is φ = 10183680.

The previous prime is 13020731. The next prime is 13020751. The reversal of 13020745 is 54702031.

13020745 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13020745 - 2⁹ = 13020233 is a prime.

It is a Duffinian 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, 67369 + ... + 67561.

It is an arithmetic number, because the mean of its divisors is an integer number (998712).

Almost surely, 2^13020745 is an apocalyptic number.

It is an amenable number.

13020745 is a deficient number, since it is larger than the sum of its proper divisors (2958647).

13020745 is a wasteful number, since it uses less digits than its factorization.

13020745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 432.

The product of its (nonzero) digits is 840, while the sum is 22.

The square root of 13020745 is about 3608.4269425887. The cubic root of 13020745 is about 235.2584752200.

Adding to 13020745 its reverse (54702031), we get a palindrome (67722776).

The spelling of 13020745 in words is "thirteen million, twenty thousand, seven hundred forty-five".