132731181 has 48 divisors (see below), whose sum is σ = 219747840. Its totient is φ = 76464000.

The previous prime is 132731171. The next prime is 132731197. The reversal of 132731181 is 181137231.

It is a happy number.

It is not a de Polignac number, because 132731181 - 2⁶ = 132731117 is a prime.

It is a super-2 number, since 2×132731181² = 35235132819309522, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (132731111) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 186855 + ... + 187563.

It is an arithmetic number, because the mean of its divisors is an integer number (4578080).

Almost surely, 2^132731181 is an apocalyptic number.

132731181 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

132731181 is a deficient number, since it is larger than the sum of its proper divisors (87016659).

132731181 is a wasteful number, since it uses less digits than its factorization.

132731181 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 818 (or 815 counting only the distinct ones).

The product of its digits is 1008, while the sum is 27.

The square root of 132731181 is about 11520.9019178188. The cubic root of 132731181 is about 510.1027359352.

The spelling of 132731181 in words is "one hundred thirty-two million, seven hundred thirty-one thousand, one hundred eighty-one".