331033 has 4 divisors (see below), whose sum is σ = 334180. Its totient is φ = 327888.

The previous prime is 331031. The next prime is 331043. The reversal of 331033 is 330133.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 257049 + 73984 = 507^2 + 272^2 .

It is a cyclic number.

It is not a de Polignac number, because 331033 - 2¹ = 331031 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 (331031) 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, 1410 + ... + 1627.

It is an arithmetic number, because the mean of its divisors is an integer number (83545).

2³³¹⁰³³ is an apocalyptic number.

It is an amenable number.

331033 is a deficient number, since it is larger than the sum of its proper divisors (3147).

331033 is a wasteful number, since it uses less digits than its factorization.

331033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3146.

The product of its (nonzero) digits is 81, while the sum is 13.

The square root of 331033 is about 575.3546732234. The cubic root of 331033 is about 69.1762629223.

Adding to 331033 its reverse (330133), we get a palindrome (661166).

Subtracting from 331033 its reverse (330133), we obtain a square (900 = 30²).

The spelling of 331033 in words is "three hundred thirty-one thousand, thirty-three".