12318807 has 4 divisors (see below), whose sum is σ = 16425080. Its totient is φ = 8212536.

The previous prime is 12318799. The next prime is 12318809. The reversal of 12318807 is 70881321.

It is a happy number.

12318807 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 12318807 - 2³ = 12318799 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 (12318809) 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, 2053132 + ... + 2053137.

It is an arithmetic number, because the mean of its divisors is an integer number (4106270).

Almost surely, 2^12318807 is an apocalyptic number.

12318807 is a deficient number, since it is larger than the sum of its proper divisors (4106273).

12318807 is an equidigital number, since it uses as much as digits as its factorization.

12318807 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4106272.

The product of its (nonzero) digits is 2688, while the sum is 30.

The square root of 12318807 is about 3509.8158071329. The cubic root of 12318807 is about 230.9526148565.

The spelling of 12318807 in words is "twelve million, three hundred eighteen thousand, eight hundred seven".