13147968 has 84 divisors (see below), whose sum is σ = 36689792. Its totient is φ = 4151040.

The previous prime is 13147949. The next prime is 13147997. The reversal of 13147968 is 86974131.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 279721 + ... + 279767.

Almost surely, 2^13147968 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 13147968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18344896).

13147968 is an abundant number, since it is smaller than the sum of its proper divisors (23541824).

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

13147968 is an equidigital number, since it uses as much as digits as its factorization.

13147968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140 (or 83 counting only the distinct ones).

The product of its digits is 36288, while the sum is 39.

The square root of 13147968 is about 3626.0126861334. The cubic root of 13147968 is about 236.0222137474.

The spelling of 13147968 in words is "thirteen million, one hundred forty-seven thousand, nine hundred sixty-eight".