131166791 has 8 divisors (see below), whose sum is σ = 149982720. Its totient is φ = 112370328.

The previous prime is 131166787. The next prime is 131166793. The reversal of 131166791 is 197661131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 131166791 - 2² = 131166787 is a prime.

It is a super-2 number, since 2×131166791² = 34409454122475362, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131166793) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14990 + ... + 22068.

It is an arithmetic number, because the mean of its divisors is an integer number (18747840).

Almost surely, 2^131166791 is an apocalyptic number.

131166791 is a deficient number, since it is larger than the sum of its proper divisors (18815929).

131166791 is an equidigital number, since it uses as much as digits as its factorization.

131166791 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9733.

The product of its digits is 6804, while the sum is 35.

The square root of 131166791 is about 11452.8071231467. The cubic root of 131166791 is about 508.0907610066.

The spelling of 131166791 in words is "one hundred thirty-one million, one hundred sixty-six thousand, seven hundred ninety-one".