13157872 has 60 divisors (see below), whose sum is σ = 31961496. Its totient is φ = 5201280.

The previous prime is 13157869. The next prime is 13157887. The reversal of 13157872 is 27875131.

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 11 ways as a sum of consecutive naturals, for example, 9547 + ... + 10837.

Almost surely, 2^13157872 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13157872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15980748).

13157872 is an abundant number, since it is smaller than the sum of its proper divisors (18803624).

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

13157872 is a wasteful number, since it uses less digits than its factorization.

13157872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1326 (or 1313 counting only the distinct ones).

The product of its digits is 11760, while the sum is 34.

The square root of 13157872 is about 3627.3781164913. The cubic root of 13157872 is about 236.0814618713.

The spelling of 13157872 in words is "thirteen million, one hundred fifty-seven thousand, eight hundred seventy-two".