12501240 has 64 divisors (see below), whose sum is σ = 39484800. Its totient is φ = 3157632.

The previous prime is 12501193. The next prime is 12501257. The reversal of 12501240 is 4210521.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 462 + ... + 5021.

It is an arithmetic number, because the mean of its divisors is an integer number (616950).

Almost surely, 2^12501240 is an apocalyptic number.

12501240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12501240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19742400).

12501240 is an abundant number, since it is smaller than the sum of its proper divisors (26983560).

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

12501240 is a wasteful number, since it uses less digits than its factorization.

12501240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5516 (or 5512 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 15.

The square root of 12501240 is about 3535.7092640657. The cubic root of 12501240 is about 232.0871155204.

Adding to 12501240 its reverse (4210521), we get a palindrome (16711761).

The spelling of 12501240 in words is "twelve million, five hundred one thousand, two hundred forty".