13020756 has 24 divisors (see below), whose sum is σ = 34722240. Its totient is φ = 3720192.

The previous prime is 13020751. The next prime is 13020767. The reversal of 13020756 is 65702031.

13020756 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13020751) 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, 77421 + ... + 77588.

It is an arithmetic number, because the mean of its divisors is an integer number (1446760).

Almost surely, 2^13020756 is an apocalyptic number.

It is an amenable number.

13020756 is an abundant number, since it is smaller than the sum of its proper divisors (21701484).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13020756 is a wasteful number, since it uses less digits than its factorization.

13020756 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155023 (or 155021 counting only the distinct ones).

The product of its (nonzero) digits is 1260, while the sum is 24.

The square root of 13020756 is about 3608.4284667983. The cubic root of 13020756 is about 235.2585414692.

Adding to 13020756 its reverse (65702031), we get a palindrome (78722787).

The spelling of 13020756 in words is "thirteen million, twenty thousand, seven hundred fifty-six".