132433221 has 4 divisors (see below), whose sum is σ = 176577632. Its totient is φ = 88288812.

The previous prime is 132433207. The next prime is 132433237. The reversal of 132433221 is 122334231.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 122334231 = 3 ⋅40778077.

It is not a de Polignac number, because 132433221 - 2¹⁸ = 132171077 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 (132433201) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22072201 + ... + 22072206.

It is an arithmetic number, because the mean of its divisors is an integer number (44144408).

Almost surely, 2^132433221 is an apocalyptic number.

It is an amenable number.

132433221 is a deficient number, since it is larger than the sum of its proper divisors (44144411).

132433221 is an equidigital number, since it uses as much as digits as its factorization.

132433221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44144410.

The product of its digits is 864, while the sum is 21.

The square root of 132433221 is about 11507.9633732472. The cubic root of 132433221 is about 509.7207506242.

Adding to 132433221 its reverse (122334231), we get a palindrome (254767452).

The spelling of 132433221 in words is "one hundred thirty-two million, four hundred thirty-three thousand, two hundred twenty-one".