12312385 has 8 divisors (see below), whose sum is σ = 15284520. Its totient is φ = 9510144.

The previous prime is 12312359. The next prime is 12312397. The reversal of 12312385 is 58321321.

It can be written as a sum of positive squares in 4 ways, for example, as 368449 + 11943936 = 607^2 + 3456^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12312385 - 2⁵ = 12312353 is a prime.

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, 42312 + ... + 42601.

It is an arithmetic number, because the mean of its divisors is an integer number (1910565).

Almost surely, 2^12312385 is an apocalyptic number.

It is an amenable number.

12312385 is a deficient number, since it is larger than the sum of its proper divisors (2972135).

12312385 is an equidigital number, since it uses as much as digits as its factorization.

12312385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84947.

The product of its digits is 1440, while the sum is 25.

The square root of 12312385 is about 3508.9008250448. The cubic root of 12312385 is about 230.9124747276.

The spelling of 12312385 in words is "twelve million, three hundred twelve thousand, three hundred eighty-five".