12137871 has 8 divisors (see below), whose sum is σ = 16231600. Its totient is φ = 8068032.

The previous prime is 12137861. The next prime is 12137899. The reversal of 12137871 is 17873121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12137871 - 2⁷ = 12137743 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12137821) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4750 + ... + 6843.

It is an arithmetic number, because the mean of its divisors is an integer number (2028950).

Almost surely, 2^12137871 is an apocalyptic number.

12137871 is a deficient number, since it is larger than the sum of its proper divisors (4093729).

12137871 is a wasteful number, since it uses less digits than its factorization.

12137871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11945.

The product of its digits is 2352, while the sum is 30.

The square root of 12137871 is about 3483.9447469786. The cubic root of 12137871 is about 229.8163057538.

The spelling of 12137871 in words is "twelve million, one hundred thirty-seven thousand, eight hundred seventy-one".