12315858 has 16 divisors (see below), whose sum is σ = 24678336. Its totient is φ = 4097520.

The previous prime is 12315851. The next prime is 12315881. The reversal of 12315858 is 85851321.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (12315851) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2160 + ... + 5412.

It is an arithmetic number, because the mean of its divisors is an integer number (1542396).

Almost surely, 2^12315858 is an apocalyptic number.

12315858 is an abundant number, since it is smaller than the sum of its proper divisors (12362478).

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

12315858 is a wasteful number, since it uses less digits than its factorization.

12315858 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3889.

The product of its digits is 9600, while the sum is 33.

The square root of 12315858 is about 3509.3956744716. The cubic root of 12315858 is about 230.9341841320.

The spelling of 12315858 in words is "twelve million, three hundred fifteen thousand, eight hundred fifty-eight".