815233 has 8 divisors (see below), whose sum is σ = 868320. Its totient is φ = 763200.

The previous prime is 815231. The next prime is 815251. The reversal of 815233 is 332518.

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 815233 - 2¹ = 815231 is a prime.

It is a Duffinian number.

815233 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (815231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1833 + ... + 2233.

It is an arithmetic number, because the mean of its divisors is an integer number (108540).

2⁸¹⁵²³³ is an apocalyptic number.

It is an amenable number.

815233 is a deficient number, since it is larger than the sum of its proper divisors (53087).

815233 is a wasteful number, since it uses less digits than its factorization.

815233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 527.

The product of its digits is 720, while the sum is 22.

The square root of 815233 is about 902.9025418061. The cubic root of 815233 is about 93.4172869891.

The spelling of 815233 in words is "eight hundred fifteen thousand, two hundred thirty-three".