12137980 has 12 divisors (see below), whose sum is σ = 25489800. Its totient is φ = 4855184.

The previous prime is 12137969. The next prime is 12137981. The reversal of 12137980 is 8973121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12137981) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 303430 + ... + 303469.

It is an arithmetic number, because the mean of its divisors is an integer number (2124150).

Almost surely, 2^12137980 is an apocalyptic number.

12137980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12137980 is an abundant number, since it is smaller than the sum of its proper divisors (13351820).

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

12137980 is a wasteful number, since it uses less digits than its factorization.

12137980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 606908 (or 606906 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 31.

The square root of 12137980 is about 3483.9603901307. The cubic root of 12137980 is about 229.8169936807.

The spelling of 12137980 in words is "twelve million, one hundred thirty-seven thousand, nine hundred eighty".