813065 has 8 divisors (see below), whose sum is σ = 1064448. Its totient is φ = 591280.

The previous prime is 813061. The next prime is 813083. The reversal of 813065 is 560318.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 813065 - 2² = 813061 is a prime.

It is a super-2 number, since 2×813065² = 1322149388450, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 813065.

It is not an unprimeable number, because it can be changed into a prime (813061) 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, 7337 + ... + 7446.

It is an arithmetic number, because the mean of its divisors is an integer number (133056).

2⁸¹³⁰⁶⁵ is an apocalyptic number.

It is an amenable number.

813065 is a deficient number, since it is larger than the sum of its proper divisors (251383).

813065 is a wasteful number, since it uses less digits than its factorization.

813065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14799.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 813065 is about 901.7011700114. The cubic root of 813065 is about 93.3344033324.

The spelling of 813065 in words is "eight hundred thirteen thousand, sixty-five".