331085 has 8 divisors (see below), whose sum is σ = 414720. Its totient is φ = 253264.

The previous prime is 331081. The next prime is 331099. The reversal of 331085 is 580133.

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 331085 - 2² = 331081 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331081) 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, 1325 + ... + 1554.

It is an arithmetic number, because the mean of its divisors is an integer number (51840).

2³³¹⁰⁸⁵ is an apocalyptic number.

It is an amenable number.

331085 is a deficient number, since it is larger than the sum of its proper divisors (83635).

331085 is a wasteful number, since it uses less digits than its factorization.

331085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2907.

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 331085 is about 575.3998609663. The cubic root of 331085 is about 69.1798848949.

The spelling of 331085 in words is "three hundred thirty-one thousand, eighty-five".