13187166 has 32 divisors (see below), whose sum is σ = 27260928. Its totient is φ = 4250400.

The previous prime is 13187143. The next prime is 13187171. The reversal of 13187166 is 66178131.

13187166 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×13187166² = 347802694223112, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28251 + ... + 28713.

It is an arithmetic number, because the mean of its divisors is an integer number (851904).

Almost surely, 2^13187166 is an apocalyptic number.

13187166 is an abundant number, since it is smaller than the sum of its proper divisors (14073762).

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

13187166 is a wasteful number, since it uses less digits than its factorization.

13187166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 616.

The product of its digits is 6048, while the sum is 33.

The square root of 13187166 is about 3631.4137742758. The cubic root of 13187166 is about 236.2565318314.

The spelling of 13187166 in words is "thirteen million, one hundred eighty-seven thousand, one hundred sixty-six".