13150881 has 6 divisors (see below), whose sum is σ = 18995730. Its totient is φ = 8767248.

The previous prime is 13150859. The next prime is 13150883. The reversal of 13150881 is 18805131.

It can be written as a sum of positive squares in only one way, i.e., 8381025 + 4769856 = 2895^2 + 2184^2 .

It is not a de Polignac number, because 13150881 - 2⁵ = 13150849 is a prime.

It is a super-2 number, since 2×13150881² = 345891342152322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13150883) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 730596 + ... + 730613.

It is an arithmetic number, because the mean of its divisors is an integer number (3165955).

Almost surely, 2^13150881 is an apocalyptic number.

It is an amenable number.

13150881 is a deficient number, since it is larger than the sum of its proper divisors (5844849).

13150881 is a wasteful number, since it uses less digits than its factorization.

13150881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1461215 (or 1461212 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 27.

The square root of 13150881 is about 3626.4143447764. The cubic root of 13150881 is about 236.0396431058.

The spelling of 13150881 in words is "thirteen million, one hundred fifty thousand, eight hundred eighty-one".