131989132 has 24 divisors (see below), whose sum is σ = 252297360. Its totient is φ = 59919360.

The previous prime is 131989097. The next prime is 131989163. The reversal of 131989132 is 231989131.

It is a super-2 number, since 2×131989132² = 34842261932226848, which contains 22 as substring.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 131989091 and 131989100.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48348 + ... + 51004.

It is an arithmetic number, because the mean of its divisors is an integer number (10512390).

Almost surely, 2^131989132 is an apocalyptic number.

It is an amenable number.

131989132 is a deficient number, since it is larger than the sum of its proper divisors (120308228).

131989132 is a wasteful number, since it uses less digits than its factorization.

131989132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3801 (or 3799 counting only the distinct ones).

The product of its digits is 11664, while the sum is 37.

The square root of 131989132 is about 11488.6523143491. The cubic root of 131989132 is about 509.1503628501.

Subtracting 131989132 from its reverse (231989131), we obtain a palindrome (99999999).

The spelling of 131989132 in words is "one hundred thirty-one million, nine hundred eighty-nine thousand, one hundred thirty-two".