132442221 has 8 divisors (see below), whose sum is σ = 179008960. Its totient is φ = 87085152.

The previous prime is 132442213. The next prime is 132442237. The reversal of 132442221 is 122244231.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 132442221 - 2³ = 132442213 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (132442201) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 302161 + ... + 302598.

It is an arithmetic number, because the mean of its divisors is an integer number (22376120).

Almost surely, 2^132442221 is an apocalyptic number.

It is an amenable number.

132442221 is a deficient number, since it is larger than the sum of its proper divisors (46566739).

132442221 is an equidigital number, since it uses as much as digits as its factorization.

132442221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 604835.

The product of its digits is 768, while the sum is 21.

The square root of 132442221 is about 11508.3544001738. The cubic root of 132442221 is about 509.7322970292.

Adding to 132442221 its reverse (122244231), we get a palindrome (254686452).

The spelling of 132442221 in words is "one hundred thirty-two million, four hundred forty-two thousand, two hundred twenty-one".