12513750 has 80 divisors (see below), whose sum is σ = 32389632. Its totient is φ = 3220000.

The previous prime is 12513749. The next prime is 12513763. The reversal of 12513750 is 5731521.

It is a self number, because there is not a number n which added to its sum of digits gives 12513750.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 176215 + ... + 176285.

Almost surely, 2^12513750 is an apocalyptic number.

12513750 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 12513750, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16194816).

12513750 is an abundant number, since it is smaller than the sum of its proper divisors (19875882).

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

12513750 is an equidigital number, since it uses as much as digits as its factorization.

12513750 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143 (or 128 counting only the distinct ones).

The product of its (nonzero) digits is 1050, while the sum is 24.

The square root of 12513750 is about 3537.4779151254. The cubic root of 12513750 is about 232.1645062932.

The spelling of 12513750 in words is "twelve million, five hundred thirteen thousand, seven hundred fifty".