12137880 has 32 divisors (see below), whose sum is σ = 36414000. Its totient is φ = 3236736.

The previous prime is 12137861. The next prime is 12137899. The reversal of 12137880 is 8873121.

It is a happy number.

12137880 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 (12137861) and next prime (12137899).

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50455 + ... + 50694.

Almost surely, 2^12137880 is an apocalyptic number.

12137880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12137880 is an abundant number, since it is smaller than the sum of its proper divisors (24276120).

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

12137880 is a wasteful number, since it uses less digits than its factorization.

12137880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101163 (or 101159 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 30.

The square root of 12137880 is about 3483.9460386177. The cubic root of 12137880 is about 229.8163625553.

The spelling of 12137880 in words is "twelve million, one hundred thirty-seven thousand, eight hundred eighty".