13641047 has 16 divisors (see below), whose sum is σ = 16389120. Its totient is φ = 11100672.

The previous prime is 13641041. The next prime is 13641073. The reversal of 13641047 is 74014631.

It is a cyclic number.

It is not a de Polignac number, because 13641047 - 2⁸ = 13640791 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 (13641041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30854 + ... + 31292.

It is an arithmetic number, because the mean of its divisors is an integer number (1024320).

Almost surely, 2^13641047 is an apocalyptic number.

13641047 is a deficient number, since it is larger than the sum of its proper divisors (2748073).

13641047 is a wasteful number, since it uses less digits than its factorization.

13641047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 662.

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 13641047 is about 3693.3788053759. The cubic root of 13641047 is about 238.9365388834.

Adding to 13641047 its reverse (74014631), we get a palindrome (87655678).

The spelling of 13641047 in words is "thirteen million, six hundred forty-one thousand, forty-seven".