13151172 has 12 divisors (see below), whose sum is σ = 30686096. Its totient is φ = 4383720.

The previous prime is 13151167. The next prime is 13151189. The reversal of 13151172 is 27115131.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

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 3 ways as a sum of consecutive naturals, for example, 547954 + ... + 547977.

Almost surely, 2^13151172 is an apocalyptic number.

13151172 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13151172 is an abundant number, since it is smaller than the sum of its proper divisors (17534924).

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

13151172 is a wasteful number, since it uses less digits than its factorization.

13151172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1095938 (or 1095936 counting only the distinct ones).

The product of its digits is 210, while the sum is 21.

The square root of 13151172 is about 3626.4544668312. The cubic root of 13151172 is about 236.0413841052.

The spelling of 13151172 in words is "thirteen million, one hundred fifty-one thousand, one hundred seventy-two".