13131276 has 48 divisors (see below), whose sum is σ = 33022080. Its totient is φ = 4046080.

The previous prime is 13131271. The next prime is 13131281. The reversal of 13131276 is 67213131.

It is an interprime number because it is at equal distance from previous prime (13131271) and next prime (13131281).

It is not an unprimeable number, because it can be changed into a prime (13131271) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11491 + ... + 12581.

It is an arithmetic number, because the mean of its divisors is an integer number (687960).

Almost surely, 2^13131276 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 13131276, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16511040).

13131276 is an abundant number, since it is smaller than the sum of its proper divisors (19890804).

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

13131276 is a wasteful number, since it uses less digits than its factorization.

13131276 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1174 (or 1172 counting only the distinct ones).

The product of its digits is 756, while the sum is 24.

The square root of 13131276 is about 3623.7102533177. The cubic root of 13131276 is about 235.9222907992.

The spelling of 13131276 in words is "thirteen million, one hundred thirty-one thousand, two hundred seventy-six".