12137906 has 8 divisors (see below), whose sum is σ = 19862064. Its totient is φ = 5517220.

The previous prime is 12137899. The next prime is 12137953. The reversal of 12137906 is 60973121.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 275840 + ... + 275883.

It is an arithmetic number, because the mean of its divisors is an integer number (2482758).

Almost surely, 2^12137906 is an apocalyptic number.

12137906 is a deficient number, since it is larger than the sum of its proper divisors (7724158).

12137906 is a wasteful number, since it uses less digits than its factorization.

12137906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 551736.

The product of its (nonzero) digits is 2268, while the sum is 29.

The square root of 12137906 is about 3483.9497700168. The cubic root of 12137906 is about 229.8165266482.

It can be divided in two parts, 1213 and 7906, that added together give a palindrome (9119).

The spelling of 12137906 in words is "twelve million, one hundred thirty-seven thousand, nine hundred six".