13418287 has 4 divisors (see below), whose sum is σ = 14207616. Its totient is φ = 12628960.

The previous prime is 13418267. The next prime is 13418299. The reversal of 13418287 is 78281431.

It is a happy number.

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

It is not a de Polignac number, because 13418287 - 2⁷ = 13418159 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 (13418267) 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, 394639 + ... + 394672.

It is an arithmetic number, because the mean of its divisors is an integer number (3551904).

Almost surely, 2^13418287 is an apocalyptic number.

13418287 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

13418287 is a deficient number, since it is larger than the sum of its proper divisors (789329).

13418287 is an equidigital number, since it uses as much as digits as its factorization.

13418287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 789328.

The product of its digits is 10752, while the sum is 34.

The square root of 13418287 is about 3663.0980057869. The cubic root of 13418287 is about 237.6287730103.

The spelling of 13418287 in words is "thirteen million, four hundred eighteen thousand, two hundred eighty-seven".