131673632 has 24 divisors (see below), whose sum is σ = 265557852. Its totient is φ = 64230400.

The previous prime is 131673613. The next prime is 131673637. The reversal of 131673632 is 236376131.

It can be written as a sum of positive squares in 2 ways, for example, as 101687056 + 29986576 = 10084^2 + 5476^2 .

It is a Harshad number since it is a multiple of its sum of digits (32).

It is not an unprimeable number, because it can be changed into a prime (131673637) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48869 + ... + 51492.

Almost surely, 2^131673632 is an apocalyptic number.

It is an amenable number.

131673632 is an abundant number, since it is smaller than the sum of its proper divisors (133884220).

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

131673632 is a wasteful number, since it uses less digits than its factorization.

131673632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100412 (or 100404 counting only the distinct ones).

The product of its digits is 13608, while the sum is 32.

The square root of 131673632 is about 11474.9131587128. The cubic root of 131673632 is about 508.7443569413.

The spelling of 131673632 in words is "one hundred thirty-one million, six hundred seventy-three thousand, six hundred thirty-two".