132244021 has 16 divisors (see below), whose sum is σ = 163744000. Its totient is φ = 104620464.

The previous prime is 132244001. The next prime is 132244033. The reversal of 132244021 is 120442231.

It is not a de Polignac number, because 132244021 - 2²¹ = 130146869 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 132244021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (132244001) 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, 11080 + ... + 19678.

It is an arithmetic number, because the mean of its divisors is an integer number (10234000).

Almost surely, 2^132244021 is an apocalyptic number.

It is an amenable number.

132244021 is a deficient number, since it is larger than the sum of its proper divisors (31499979).

132244021 is an frugal number, since it uses more digits than its factorization.

132244021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8645 (or 8619 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 132244021 is about 11499.7400405400. The cubic root of 132244021 is about 509.4778983460.

Adding to 132244021 its reverse (120442231), we get a palindrome (252686252).

The spelling of 132244021 in words is "one hundred thirty-two million, two hundred forty-four thousand, twenty-one".