813053 has 4 divisors (see below), whose sum is σ = 830400. Its totient is φ = 795708.

The previous prime is 813049. The next prime is 813061. The reversal of 813053 is 350318.

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 a cyclic number.

It is not a de Polignac number, because 813053 - 2² = 813049 is a prime.

It is a super-2 number, since 2×813053² = 1322110361618, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (813013) 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, 8603 + ... + 8696.

It is an arithmetic number, because the mean of its divisors is an integer number (207600).

2⁸¹³⁰⁵³ is an apocalyptic number.

It is an amenable number.

813053 is a deficient number, since it is larger than the sum of its proper divisors (17347).

813053 is a wasteful number, since it uses less digits than its factorization.

813053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17346.

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 813053 is about 901.6945158977. The cubic root of 813053 is about 93.3339441570. Note that the first 3 decimals are identical.

The spelling of 813053 in words is "eight hundred thirteen thousand, fifty-three".