12491250 has 40 divisors (see below), whose sum is σ = 31227504. Its totient is φ = 3330000.

The previous prime is 12491201. The next prime is 12491273. The reversal of 12491250 is 5219421.

It is a self number, because there is not a number n which added to its sum of digits gives 12491250.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 2085 + ... + 5415.

Almost surely, 2^12491250 is an apocalyptic number.

12491250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 12491250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15613752).

12491250 is an abundant number, since it is smaller than the sum of its proper divisors (18736254).

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

12491250 is an equidigital number, since it uses as much as digits as its factorization.

12491250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3356 (or 3341 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 24.

The square root of 12491250 is about 3534.2962524384. The cubic root of 12491250 is about 232.0252771706.

The spelling of 12491250 in words is "twelve million, four hundred ninety-one thousand, two hundred fifty".