331293 has 4 divisors (see below), whose sum is σ = 441728. Its totient is φ = 220860.

The previous prime is 331283. The next prime is 331301. The reversal of 331293 is 392133.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 331293 - 2⁴ = 331277 is a prime.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55213 + ... + 55218.

It is an arithmetic number, because the mean of its divisors is an integer number (110432).

2³³¹²⁹³ is an apocalyptic number.

It is an amenable number.

331293 is a deficient number, since it is larger than the sum of its proper divisors (110435).

331293 is a wasteful number, since it uses less digits than its factorization.

331293 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110434.

The product of its digits is 486, while the sum is 21.

The square root of 331293 is about 575.5805764617. The cubic root of 331293 is about 69.1943689939.

It can be divided in two parts, 33 and 1293, that added together give a triangular number (1326 = T₅₁).

The spelling of 331293 in words is "three hundred thirty-one thousand, two hundred ninety-three".