12503140 has 48 divisors (see below), whose sum is σ = 29776320. Its totient is φ = 4371840.

The previous prime is 12503131. The next prime is 12503149. The reversal of 12503140 is 4130521.

12503140 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (12503131) and next prime (12503149).

It is not an unprimeable number, because it can be changed into a prime (12503149) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3675 + ... + 6205.

It is an arithmetic number, because the mean of its divisors is an integer number (620340).

Almost surely, 2^12503140 is an apocalyptic number.

12503140 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 12503140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14888160).

12503140 is an abundant number, since it is smaller than the sum of its proper divisors (17273180).

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

12503140 is a wasteful number, since it uses less digits than its factorization.

12503140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2572 (or 2570 counting only the distinct ones).

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

The square root of 12503140 is about 3535.9779411077. The cubic root of 12503140 is about 232.0988728389.

Adding to 12503140 its reverse (4130521), we get a palindrome (16633661).

The spelling of 12503140 in words is "twelve million, five hundred three thousand, one hundred forty".