132023581 has 12 divisors (see below), whose sum is σ = 142564660. Its totient is φ = 122204160.

The previous prime is 132023569. The next prime is 132023597. The reversal of 132023581 is 185320231.

It can be written as a sum of positive squares in 6 ways, for example, as 3481 + 132020100 = 59^2 + 11490^2 .

It is not a de Polignac number, because 132023581 - 2⁷ = 132023453 is a prime.

It is a super-2 number, since 2×132023581² = 34860451880127122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (132023681) 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, 13885 + ... + 21373.

Almost surely, 2^132023581 is an apocalyptic number.

It is an amenable number.

132023581 is a deficient number, since it is larger than the sum of its proper divisors (10541079).

132023581 is an equidigital number, since it uses as much as digits as its factorization.

132023581 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7584 (or 7567 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 132023581 is about 11490.1514785489. The cubic root of 132023581 is about 509.1946548683.

The spelling of 132023581 in words is "one hundred thirty-two million, twenty-three thousand, five hundred eighty-one".