13120870 has 16 divisors (see below), whose sum is σ = 26991648. Its totient is φ = 4498560.

The previous prime is 13120867. The next prime is 13120883. The reversal of 13120870 is 7802131.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 93651 + ... + 93790.

It is an arithmetic number, because the mean of its divisors is an integer number (1686978).

Almost surely, 2^13120870 is an apocalyptic number.

13120870 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13120870 is an abundant number, since it is smaller than the sum of its proper divisors (13870778).

13120870 is a wasteful number, since it uses less digits than its factorization.

13120870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187455.

The product of its (nonzero) digits is 336, while the sum is 22.

The square root of 13120870 is about 3622.2741475487. The cubic root of 13120870 is about 235.8599547363.

The spelling of 13120870 in words is "thirteen million, one hundred twenty thousand, eight hundred seventy".