132531531 has 16 divisors (see below), whose sum is σ = 193071360. Its totient is φ = 80197920.

The previous prime is 132531527. The next prime is 132531533. The reversal of 132531531 is 135135231.

It is not a de Polignac number, because 132531531 - 2² = 132531527 is a prime.

It is a super-2 number, since 2×132531531² = 35129213418407922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (132531533) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21450 + ... + 26928.

It is an arithmetic number, because the mean of its divisors is an integer number (12066960).

Almost surely, 2^132531531 is an apocalyptic number.

132531531 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

132531531 is a deficient number, since it is larger than the sum of its proper divisors (60539829).

132531531 is a wasteful number, since it uses less digits than its factorization.

132531531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6226.

The product of its digits is 1350, while the sum is 24.

The square root of 132531531 is about 11512.2339708677. The cubic root of 132531531 is about 509.8468475156.

Adding to 132531531 its reverse (135135231), we get a palindrome (267666762).

The spelling of 132531531 in words is "one hundred thirty-two million, five hundred thirty-one thousand, five hundred thirty-one".