12137807 has 4 divisors (see below), whose sum is σ = 13241256. Its totient is φ = 11034360.

The previous prime is 12137803. The next prime is 12137809. The reversal of 12137807 is 70873121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 70873121 = 11 ⋅6443011.

It is a cyclic number.

It is not a de Polignac number, because 12137807 - 2² = 12137803 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12137807.

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 polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 551708 + ... + 551729.

It is an arithmetic number, because the mean of its divisors is an integer number (3310314).

Almost surely, 2^12137807 is an apocalyptic number.

12137807 is a deficient number, since it is larger than the sum of its proper divisors (1103449).

12137807 is a wasteful number, since it uses less digits than its factorization.

12137807 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1103448.

The product of its (nonzero) digits is 2352, while the sum is 29.

The square root of 12137807 is about 3483.9355619759. The cubic root of 12137807 is about 229.8159018315.

The spelling of 12137807 in words is "twelve million, one hundred thirty-seven thousand, eight hundred seven".