12810315 has 48 divisors (see below), whose sum is σ = 24706080. Its totient is φ = 5644800.

The previous prime is 12810311. The next prime is 12810323. The reversal of 12810315 is 51301821.

12810315 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12810315 - 2² = 12810311 is a prime.

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

It is a junction number, because it is equal to n+sod(n) for n = 12810291 and 12810300.

It is not an unprimeable number, because it can be changed into a prime (12810311) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 21015 + ... + 21615.

It is an arithmetic number, because the mean of its divisors is an integer number (514710).

Almost surely, 2^12810315 is an apocalyptic number.

12810315 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12810315 is a deficient number, since it is larger than the sum of its proper divisors (11895765).

12810315 is a wasteful number, since it uses less digits than its factorization.

12810315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 652 (or 645 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 21.

The square root of 12810315 is about 3579.1500387662. The cubic root of 12810315 is about 233.9842381085.

The spelling of 12810315 in words is "twelve million, eight hundred ten thousand, three hundred fifteen".