331363 has 4 divisors (see below), whose sum is σ = 333040. Its totient is φ = 329688.

The previous prime is 331349. The next prime is 331367. The reversal of 331363 is 363133.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 363133 = 61 ⋅5953.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-331363 is a prime.

It is a Duffinian number.

331363 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 331363.

It is not an unprimeable number, because it can be changed into a prime (331367) 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, 495 + ... + 952.

It is an arithmetic number, because the mean of its divisors is an integer number (83260).

2³³¹³⁶³ is an apocalyptic number.

331363 is a deficient number, since it is larger than the sum of its proper divisors (1677).

331363 is a wasteful number, since it uses less digits than its factorization.

331363 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1676.

The product of its digits is 486, while the sum is 19.

The square root of 331363 is about 575.6413814173. The cubic root of 331363 is about 69.1992420869.

Adding to 331363 its reverse (363133), we get a palindrome (694496).

The spelling of 331363 in words is "three hundred thirty-one thousand, three hundred sixty-three".