13641018 has 8 divisors (see below), whose sum is σ = 27282048. Its totient is φ = 4547004.

The previous prime is 13640989. The next prime is 13641041. The reversal of 13641018 is 81014631.

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

13641018 is an admirable number.

It is a nialpdrome in base 11.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1136746 + ... + 1136757.

It is an arithmetic number, because the mean of its divisors is an integer number (3410256).

Almost surely, 2^13641018 is an apocalyptic number.

13641018 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

13641018 is a wasteful number, since it uses less digits than its factorization.

13641018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2273508.

The product of its (nonzero) digits is 576, while the sum is 24.

The square root of 13641018 is about 3693.3748794294. The cubic root of 13641018 is about 238.9363695620.

Adding to 13641018 its reverse (81014631), we get a palindrome (94655649).

The spelling of 13641018 in words is "thirteen million, six hundred forty-one thousand, eighteen".