27131166 has 16 divisors (see below), whose sum is σ = 60291600. Its totient is φ = 9043704.

The previous prime is 27131161. The next prime is 27131189. The reversal of 27131166 is 66113172.

It is a super-2 number, since 2×27131166² = 1472200337039112, which contains 22 as substring.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27131161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 251161 + ... + 251268.

It is an arithmetic number, because the mean of its divisors is an integer number (3768225).

Almost surely, 2^27131166 is an apocalyptic number.

27131166 is an abundant number, since it is smaller than the sum of its proper divisors (33160434).

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

27131166 is a wasteful number, since it uses less digits than its factorization.

27131166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 502440 (or 502434 counting only the distinct ones).

The product of its digits is 1512, while the sum is 27.

The square root of 27131166 is about 5208.7585853061. The cubic root of 27131166 is about 300.4850154442.

The spelling of 27131166 in words is "twenty-seven million, one hundred thirty-one thousand, one hundred sixty-six".