12312250 has 32 divisors (see below), whose sum is σ = 24412752. Its totient is φ = 4633600.

The previous prime is 12312241. The next prime is 12312263. The reversal of 12312250 is 5221321.

It can be written as a sum of positive squares in 8 ways, for example, as 139129 + 12173121 = 373^2 + 3489^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2802 + ... + 5698.

Almost surely, 2^12312250 is an apocalyptic number.

12312250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12312250 is a deficient number, since it is larger than the sum of its proper divisors (12100502).

12312250 is a wasteful number, since it uses less digits than its factorization.

12312250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2931 (or 2921 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 12312250 is about 3508.8815881987. The cubic root of 12312250 is about 230.9116307726.

Adding to 12312250 its reverse (5221321), we get a palindrome (17533571).

It can be divided in two parts, 1231 and 2250, that added together give a square (3481 = 59²).

The spelling of 12312250 in words is "twelve million, three hundred twelve thousand, two hundred fifty".