131791032 has 24 divisors (see below), whose sum is σ = 356934240. Its totient is φ = 43930320.

The previous prime is 131791027. The next prime is 131791057. The reversal of 131791032 is 230197131.

It is a tau number, because it is divible by the number of its divisors (24).

It is a super-2 number, since 2×131791032² = 34737752231250048, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 131790987 and 131791005.

It is a congruent number.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 915144 + ... + 915287.

It is an arithmetic number, because the mean of its divisors is an integer number (14872260).

Almost surely, 2^131791032 is an apocalyptic number.

131791032 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

131791032 is an abundant number, since it is smaller than the sum of its proper divisors (225143208).

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

131791032 is a wasteful number, since it uses less digits than its factorization.

131791032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1830443 (or 1830436 counting only the distinct ones).

The product of its (nonzero) digits is 1134, while the sum is 27.

The square root of 131791032 is about 11480.0275260994. The cubic root of 131791032 is about 508.8955105794.

The spelling of 131791032 in words is "one hundred thirty-one million, seven hundred ninety-one thousand, thirty-two".