12312285 has 16 divisors (see below), whose sum is σ = 20736960. Its totient is φ = 6220800.

The previous prime is 12312283. The next prime is 12312331. The reversal of 12312285 is 58221321.

It is not a de Polignac number, because 12312285 - 2¹ = 12312283 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12312281) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21316 + ... + 21885.

It is an arithmetic number, because the mean of its divisors is an integer number (1296060).

Almost surely, 2^12312285 is an apocalyptic number.

12312285 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12312285 is a deficient number, since it is larger than the sum of its proper divisors (8424675).

12312285 is a wasteful number, since it uses less digits than its factorization.

12312285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43228.

The product of its digits is 960, while the sum is 24.

The square root of 12312285 is about 3508.8865755393. The cubic root of 12312285 is about 230.9118495763.

The spelling of 12312285 in words is "twelve million, three hundred twelve thousand, two hundred eighty-five".