12831250 has 24 divisors (see below), whose sum is σ = 24068772. Its totient is φ = 5130000.

The previous prime is 12831227. The next prime is 12831293. The reversal of 12831250 is 5213821.

It can be written as a sum of positive squares in 6 ways, for example, as 1481089 + 11350161 = 1217^2 + 3369^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5224 + ... + 7276.

Almost surely, 2^12831250 is an apocalyptic number.

12831250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12831250 is a deficient number, since it is larger than the sum of its proper divisors (11237522).

12831250 is an frugal number, since it uses more digits than its factorization.

12831250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2080 (or 2060 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 22.

The square root of 12831250 is about 3582.0734219164. The cubic root of 12831250 is about 234.1116300849. Note that the first 3 decimals are identical.

It can be divided in two parts, 128 and 31250, that multiplied together give a square (4000000 = 2000²).

The spelling of 12831250 in words is "twelve million, eight hundred thirty-one thousand, two hundred fifty".