12137988 has 48 divisors (see below), whose sum is σ = 29732864. Its totient is φ = 3849120.

The previous prime is 12137981. The next prime is 12137989. The reversal of 12137988 is 88973121.

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 15 ways as a sum of consecutive naturals, for example, 24681 + ... + 25167.

Almost surely, 2^12137988 is an apocalyptic number.

It is an amenable number.

12137988 is an abundant number, since it is smaller than the sum of its proper divisors (17594876).

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

12137988 is a wasteful number, since it uses less digits than its factorization.

12137988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 592 (or 590 counting only the distinct ones).

The product of its digits is 24192, while the sum is 39.

The square root of 12137988 is about 3483.9615382492. The cubic root of 12137988 is about 229.8170441706.

The spelling of 12137988 in words is "twelve million, one hundred thirty-seven thousand, nine hundred eighty-eight".