12502140 has 144 divisors (see below), whose sum is σ = 42911232. Its totient is φ = 2663424.

The previous prime is 12502129. The next prime is 12502151. The reversal of 12502140 is 4120521.

It is an interprime number because it is at equal distance from previous prime (12502129) and next prime (12502151).

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 polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 121329 + ... + 121431.

Almost surely, 2^12502140 is an apocalyptic number.

12502140 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 12502140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21455616).

12502140 is an abundant number, since it is smaller than the sum of its proper divisors (30409092).

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

12502140 is a wasteful number, since it uses less digits than its factorization.

12502140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156 (or 137 counting only the distinct ones).

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

The square root of 12502140 is about 3535.8365346831. The cubic root of 12502140 is about 232.0926849251.

Adding to 12502140 its reverse (4120521), we get a palindrome (16622661).

The spelling of 12502140 in words is "twelve million, five hundred two thousand, one hundred forty".