809130 has 32 divisors (see below), whose sum is σ = 2219904. Its totient is φ = 184896.

The previous prime is 809101. The next prime is 809141. The reversal of 809130 is 31908.

It is a Harshad number since it is a multiple of its sum of digits (21).

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 = 809097 and 809106.

It is a congruent number.

It is an unprimeable number.

809130 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1717 + ... + 2136.

It is an arithmetic number, because the mean of its divisors is an integer number (69372).

2⁸⁰⁹¹³⁰ is an apocalyptic number.

809130 is an abundant number, since it is smaller than the sum of its proper divisors (1410774).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

809130 is a wasteful number, since it uses less digits than its factorization.

809130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3870.

The product of its (nonzero) digits is 216, while the sum is 21.

The square root of 809130 is about 899.5165368130. The cubic root of 809130 is about 93.1835892440.

It can be divided in two parts, 809 and 130, that added together give a palindrome (939).

The spelling of 809130 in words is "eight hundred nine thousand, one hundred thirty".