12713418 has 12 divisors (see below), whose sum is σ = 27545778. Its totient is φ = 4237800.

The previous prime is 12713417. The next prime is 12713431. The reversal of 12713418 is 81431721.

It can be written as a sum of positive squares in only one way, i.e., 8661249 + 4052169 = 2943^2 + 2013^2 .

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 12713391 and 12713400.

It is not an unprimeable number, because it can be changed into a prime (12713417) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 353133 + ... + 353168.

Almost surely, 2^12713418 is an apocalyptic number.

12713418 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

12713418 is an abundant number, since it is smaller than the sum of its proper divisors (14832360).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12713418 is a wasteful number, since it uses less digits than its factorization.

12713418 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 706309 (or 706306 counting only the distinct ones).

The product of its digits is 1344, while the sum is 27.

The square root of 12713418 is about 3565.5880300450. The cubic root of 12713418 is about 233.3927934633.

It can be divided in two parts, 12713 and 418, that added together give a palindrome (13131).

The spelling of 12713418 in words is "twelve million, seven hundred thirteen thousand, four hundred eighteen".