13128170 has 32 divisors (see below), whose sum is σ = 26904960. Its totient is φ = 4565440.

The previous prime is 13128169. The next prime is 13128187. The reversal of 13128170 is 7182131.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (23).

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 15 ways as a sum of consecutive naturals, for example, 65 + ... + 5124.

It is an arithmetic number, because the mean of its divisors is an integer number (840780).

Almost surely, 2^13128170 is an apocalyptic number.

13128170 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13128170 is an abundant number, since it is smaller than the sum of its proper divisors (13776790).

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

13128170 is a wasteful number, since it uses less digits than its factorization.

13128170 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5230.

The product of its (nonzero) digits is 336, while the sum is 23.

The square root of 13128170 is about 3623.2816616984. The cubic root of 13128170 is about 235.9036880775.

The spelling of 13128170 in words is "thirteen million, one hundred twenty-eight thousand, one hundred seventy".