132231021 has 16 divisors (see below), whose sum is σ = 190201536. Its totient is φ = 81230976.

The previous prime is 132231017. The next prime is 132231023. The reversal of 132231021 is 120132231.

It is not a de Polignac number, because 132231021 - 2² = 132231017 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (132231023) 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, 22441 + ... + 27713.

It is an arithmetic number, because the mean of its divisors is an integer number (11887596).

Almost surely, 2^132231021 is an apocalyptic number.

It is an amenable number.

132231021 is a deficient number, since it is larger than the sum of its proper divisors (57970515).

132231021 is a wasteful number, since it uses less digits than its factorization.

132231021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5932.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 132231021 is about 11499.1747964800. The cubic root of 132231021 is about 509.4612033765.

Adding to 132231021 its reverse (120132231), we get a palindrome (252363252).

The spelling of 132231021 in words is "one hundred thirty-two million, two hundred thirty-one thousand, twenty-one".