13156128 has 48 divisors (see below), whose sum is σ = 38374560. Its totient is φ = 4385088.

The previous prime is 13156109. The next prime is 13156153. The reversal of 13156128 is 82165131.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (27).

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, 6750 + ... + 8477.

It is an arithmetic number, because the mean of its divisors is an integer number (799470).

Almost surely, 2^13156128 is an apocalyptic number.

13156128 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

13156128 is an abundant number, since it is smaller than the sum of its proper divisors (25218432).

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

13156128 is a wasteful number, since it uses less digits than its factorization.

13156128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15246 (or 15232 counting only the distinct ones).

The product of its digits is 1440, while the sum is 27.

The square root of 13156128 is about 3627.1377145071. The cubic root of 13156128 is about 236.0710309986.

The spelling of 13156128 in words is "thirteen million, one hundred fifty-six thousand, one hundred twenty-eight".