132421444 has 6 divisors (see below), whose sum is σ = 231737534. Its totient is φ = 66210720.

The previous prime is 132421439. The next prime is 132421447. The reversal of 132421444 is 444124231.

It can be written as a sum of positive squares in only one way, i.e., 93857344 + 38564100 = 9688^2 + 6210^2 .

It is not an unprimeable number, because it can be changed into a prime (132421447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16552677 + ... + 16552684.

Almost surely, 2^132421444 is an apocalyptic number.

It is an amenable number.

132421444 is a deficient number, since it is larger than the sum of its proper divisors (99316090).

132421444 is a wasteful number, since it uses less digits than its factorization.

132421444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33105365 (or 33105363 counting only the distinct ones).

The product of its digits is 3072, while the sum is 25.

The square root of 132421444 is about 11507.4516727206. The cubic root of 132421444 is about 509.7056407215.

Adding to 132421444 its reverse (444124231), we get a palindrome (576545675).

The spelling of 132421444 in words is "one hundred thirty-two million, four hundred twenty-one thousand, four hundred forty-four".