815073 has 16 divisors (see below), whose sum is σ = 1276800. Its totient is φ = 452736.

The previous prime is 815063. The next prime is 815123. The reversal of 815073 is 370518.

It is not a de Polignac number, because 815073 - 2¹⁰ = 814049 is a prime.

815073 is a lucky number.

It is a nialpdrome in base 7.

It is not an unprimeable number, because it can be changed into a prime (815033) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 253 + ... + 1301.

It is an arithmetic number, because the mean of its divisors is an integer number (79800).

2⁸¹⁵⁰⁷³ is an apocalyptic number.

It is an amenable number.

815073 is a deficient number, since it is larger than the sum of its proper divisors (461727).

815073 is a wasteful number, since it uses less digits than its factorization.

815073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1096.

The product of its (nonzero) digits is 840, while the sum is 24.

The square root of 815073 is about 902.8139343187. The cubic root of 815073 is about 93.4111751397.

The spelling of 815073 in words is "eight hundred fifteen thousand, seventy-three".