12137806 has 8 divisors (see below), whose sum is σ = 18298800. Its totient is φ = 6038208.

The previous prime is 12137803. The next prime is 12137809. The reversal of 12137806 is 60873121.

It is an interprime number because it is at equal distance from previous prime (12137803) and next prime (12137809).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12137803) by changing a digit.

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, 14851 + ... + 15646.

It is an arithmetic number, because the mean of its divisors is an integer number (2287350).

Almost surely, 2^12137806 is an apocalyptic number.

12137806 is a deficient number, since it is larger than the sum of its proper divisors (6160994).

12137806 is a wasteful number, since it uses less digits than its factorization.

12137806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30698.

The product of its (nonzero) digits is 2016, while the sum is 28.

The square root of 12137806 is about 3483.9354184600. The cubic root of 12137806 is about 229.8158955202.

The spelling of 12137806 in words is "twelve million, one hundred thirty-seven thousand, eight hundred six".