813230 has 16 divisors (see below), whose sum is σ = 1597104. Its totient is φ = 295680.

The previous prime is 813227. The next prime is 813251. The reversal of 813230 is 32318.

813230 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×813230² = 1322686065800, which contains 22 as substring.

It is an Ulam number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 813199 and 813208.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3587 + ... + 3806.

It is an arithmetic number, because the mean of its divisors is an integer number (99819).

2⁸¹³²³⁰ is an apocalyptic number.

813230 is a deficient number, since it is larger than the sum of its proper divisors (783874).

813230 is a wasteful number, since it uses less digits than its factorization.

813230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7411.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 813230 is about 901.7926590963. The cubic root of 813230 is about 93.3407165361.

Adding to 813230 its reverse (32318), we get a palindrome (845548).

The spelling of 813230 in words is "eight hundred thirteen thousand, two hundred thirty".