331322132 has 6 divisors (see below), whose sum is σ = 579813738. Its totient is φ = 165661064.

The previous prime is 331322077. The next prime is 331322137. The reversal of 331322132 is 231223133.

It can be written as a sum of positive squares in only one way, i.e., 322346116 + 8976016 = 17954^2 + 2996^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331322137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41415263 + ... + 41415270.

It is an arithmetic number, because the mean of its divisors is an integer number (96635623).

Almost surely, 2^331322132 is an apocalyptic number.

It is an amenable number.

331322132 is a deficient number, since it is larger than the sum of its proper divisors (248491606).

331322132 is a wasteful number, since it uses less digits than its factorization.

331322132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82830537 (or 82830535 counting only the distinct ones).

The product of its digits is 648, while the sum is 20.

The square root of 331322132 is about 18202.2562337750. The cubic root of 331322132 is about 691.9639711938.

Adding to 331322132 its reverse (231223133), we get a palindrome (562545265).

The spelling of 331322132 in words is "three hundred thirty-one million, three hundred twenty-two thousand, one hundred thirty-two".