13243641 has 8 divisors (see below), whose sum is σ = 17712864. Its totient is φ = 8801760.

The previous prime is 13243631. The next prime is 13243661. The reversal of 13243641 is 14634231.

13243641 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 13243641 - 2⁹ = 13243129 is a prime.

13243641 is a modest number, since divided by 3641 gives 1324 as remainder.

It is not an unprimeable number, because it can be changed into a prime (13243621) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5676 + ... + 7661.

It is an arithmetic number, because the mean of its divisors is an integer number (2214108).

Almost surely, 2^13243641 is an apocalyptic number.

It is an amenable number.

13243641 is a deficient number, since it is larger than the sum of its proper divisors (4469223).

13243641 is a wasteful number, since it uses less digits than its factorization.

13243641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13671.

The product of its digits is 1728, while the sum is 24.

The square root of 13243641 is about 3639.1813639883. The cubic root of 13243641 is about 236.5933134658.

Adding to 13243641 its reverse (14634231), we get a palindrome (27877872).

The spelling of 13243641 in words is "thirteen million, two hundred forty-three thousand, six hundred forty-one".