13120755 has 32 divisors (see below), whose sum is σ = 22063104. Its totient is φ = 6650496.

The previous prime is 13120739. The next prime is 13120759. The reversal of 13120755 is 55702131.

13120755 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 13120755 - 2⁴ = 13120739 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13120759) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 25834 + ... + 26336.

It is an arithmetic number, because the mean of its divisors is an integer number (689472).

Almost surely, 2^13120755 is an apocalyptic number.

13120755 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

13120755 is a deficient number, since it is larger than the sum of its proper divisors (8942349).

13120755 is a wasteful number, since it uses less digits than its factorization.

13120755 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 595.

The product of its (nonzero) digits is 1050, while the sum is 24.

The square root of 13120755 is about 3622.2582735084. The cubic root of 13120755 is about 235.8592656566.

Adding to 13120755 its reverse (55702131), we get a palindrome (68822886).

The spelling of 13120755 in words is "thirteen million, one hundred twenty thousand, seven hundred fifty-five".