132991641 has 12 divisors (see below), whose sum is σ = 192278320. Its totient is φ = 88578360.

The previous prime is 132991633. The next prime is 132991673. The reversal of 132991641 is 146199231.

It is a happy number.

132991641 is a `hidden beast` number, since 1 + 3 + 2 + 9 + 9 + 1 + 641 = 666.

It is not a de Polignac number, because 132991641 - 2³ = 132991633 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 132991596 and 132991605.

It is not an unprimeable number, because it can be changed into a prime (132991601) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4230 + ... + 16848.

Almost surely, 2^132991641 is an apocalyptic number.

It is an amenable number.

132991641 is a deficient number, since it is larger than the sum of its proper divisors (59286679).

132991641 is a wasteful number, since it uses less digits than its factorization.

132991641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13796 (or 13793 counting only the distinct ones).

The product of its digits is 11664, while the sum is 36.

The square root of 132991641 is about 11532.2001803645. The cubic root of 132991641 is about 510.4361781781.

The spelling of 132991641 in words is "one hundred thirty-two million, nine hundred ninety-one thousand, six hundred forty-one".