131766159 has 16 divisors (see below), whose sum is σ = 211354880. Its totient is φ = 71331840.

The previous prime is 131766157. The next prime is 131766179. The reversal of 131766159 is 951667131.

It is a happy number.

It is not a de Polignac number, because 131766159 - 2¹ = 131766157 is a prime.

It is a super-2 number, since 2×131766159² = 34724641315226562, 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 (131766157) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 164722 + ... + 165519.

It is an arithmetic number, because the mean of its divisors is an integer number (13209680).

Almost surely, 2^131766159 is an apocalyptic number.

131766159 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

131766159 is a deficient number, since it is larger than the sum of its proper divisors (79588721).

131766159 is a wasteful number, since it uses less digits than its factorization.

131766159 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 330270.

The product of its digits is 34020, while the sum is 39.

The square root of 131766159 is about 11478.9441587630. The cubic root of 131766159 is about 508.8634938475.

It can be divided in two parts, 1317 and 66159, that added together give a palindrome (67476).

The spelling of 131766159 in words is "one hundred thirty-one million, seven hundred sixty-six thousand, one hundred fifty-nine".