331279 has 8 divisors (see below), whose sum is σ = 378000. Its totient is φ = 287616.

The previous prime is 331277. The next prime is 331283. The reversal of 331279 is 972133.

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 331279 - 2¹ = 331277 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 (331277) 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, 529 + ... + 970.

It is an arithmetic number, because the mean of its divisors is an integer number (47250).

2³³¹²⁷⁹ is an apocalyptic number.

331279 is a deficient number, since it is larger than the sum of its proper divisors (46721).

331279 is a wasteful number, since it uses less digits than its factorization.

331279 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1529.

The product of its digits is 1134, while the sum is 25.

The square root of 331279 is about 575.5684146998. The cubic root of 331279 is about 69.1933942930.

The spelling of 331279 in words is "three hundred thirty-one thousand, two hundred seventy-nine".