331130132 has 6 divisors (see below), whose sum is σ = 579477738. Its totient is φ = 165565064.

The previous prime is 331130101. The next prime is 331130171. The reversal of 331130132 is 231031133.

It can be written as a sum of positive squares in only one way, i.e., 234579856 + 96550276 = 15316^2 + 9826^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 331130132.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41391263 + ... + 41391270.

It is an arithmetic number, because the mean of its divisors is an integer number (96579623).

Almost surely, 2^331130132 is an apocalyptic number.

It is an amenable number.

331130132 is a deficient number, since it is larger than the sum of its proper divisors (248347606).

331130132 is a wasteful number, since it uses less digits than its factorization.

331130132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82782537 (or 82782535 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 17.

The square root of 331130132 is about 18196.9813980231. The cubic root of 331130132 is about 691.8302818109.

Adding to 331130132 its reverse (231031133), we get a palindrome (562161265).

The spelling of 331130132 in words is "three hundred thirty-one million, one hundred thirty thousand, one hundred thirty-two".