13156900 has 36 divisors (see below), whose sum is σ = 29255940. Its totient is φ = 5132800.

The previous prime is 13156889. The next prime is 13156901. The reversal of 13156900 is 965131.

It can be written as a sum of positive squares in 6 ways, for example, as 1920996 + 11235904 = 1386^2 + 3352^2 .

It is a super-2 number, since 2×13156900² = 346208035220000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (13156901) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2496 + ... + 5704.

It is an arithmetic number, because the mean of its divisors is an integer number (812665).

Almost surely, 2^13156900 is an apocalyptic number.

13156900 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13156900, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14627970).

13156900 is an abundant number, since it is smaller than the sum of its proper divisors (16099040).

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

13156900 is a wasteful number, since it uses less digits than its factorization.

13156900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3264 (or 3257 counting only the distinct ones).

The product of its (nonzero) digits is 810, while the sum is 25.

The square root of 13156900 is about 3627.2441329472. The cubic root of 13156900 is about 236.0756484481.

The spelling of 13156900 in words is "thirteen million, one hundred fifty-six thousand, nine hundred".