815130 has 32 divisors (see below), whose sum is σ = 2174400. Its totient is φ = 217296.

The previous prime is 815123. The next prime is 815141. The reversal of 815130 is 31518.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon number.

It is a nialpdrome in base 7.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1240 + ... + 1779.

It is an arithmetic number, because the mean of its divisors is an integer number (67950).

2⁸¹⁵¹³⁰ is an apocalyptic number.

815130 is an abundant number, since it is smaller than the sum of its proper divisors (1359270).

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

815130 is a wasteful number, since it uses less digits than its factorization.

815130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3035 (or 3029 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 18.

The square root of 815130 is about 902.8455017333. The cubic root of 815130 is about 93.4133525778.

Adding to 815130 its reverse (31518), we get a palindrome (846648).

The spelling of 815130 in words is "eight hundred fifteen thousand, one hundred thirty".