131442532 has 24 divisors (see below), whose sum is σ = 260758400. Its totient is φ = 57472416.

The previous prime is 131442517. The next prime is 131442583. The reversal of 131442532 is 235244131.

It is a junction number, because it is equal to n+sod(n) for n = 131442497 and 131442506.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65532 + ... + 67507.

Almost surely, 2^131442532 is an apocalyptic number.

It is an amenable number.

131442532 is a deficient number, since it is larger than the sum of its proper divisors (129315868).

131442532 is a wasteful number, since it uses less digits than its factorization.

131442532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133075 (or 133073 counting only the distinct ones).

The product of its digits is 2880, while the sum is 25.

The square root of 131442532 is about 11464.8389434828. The cubic root of 131442532 is about 508.4465507443.

Adding to 131442532 its reverse (235244131), we get a palindrome (366686663).

The spelling of 131442532 in words is "one hundred thirty-one million, four hundred forty-two thousand, five hundred thirty-two".