331995 has 8 divisors (see below), whose sum is σ = 531216. Its totient is φ = 177056.

The previous prime is 331973. The next prime is 331997. The reversal of 331995 is 599133.

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

It is a cyclic number.

It is not a de Polignac number, because 331995 - 2⁸ = 331739 is a prime.

It is a super-2 number, since 2×331995² = 220441360050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (331997) 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, 11052 + ... + 11081.

It is an arithmetic number, because the mean of its divisors is an integer number (66402).

2³³¹⁹⁹⁵ is an apocalyptic number.

331995 is a deficient number, since it is larger than the sum of its proper divisors (199221).

331995 is a wasteful number, since it uses less digits than its factorization.

331995 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22141.

The product of its digits is 3645, while the sum is 30.

The square root of 331995 is about 576.1900728058. The cubic root of 331995 is about 69.2432081163.

It can be divided in two parts, 331 and 995, that added together give a triangular number (1326 = T₅₁).

The spelling of 331995 in words is "three hundred thirty-one thousand, nine hundred ninety-five".