13845939 has 8 divisors (see below), whose sum is σ = 19547280. Its totient is φ = 8687616.

The previous prime is 13845919. The next prime is 13845941. The reversal of 13845939 is 93954831.

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

It is not a de Polignac number, because 13845939 - 2¹¹ = 13843891 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a plaindrome in base 15.

It is a self number, because there is not a number n which added to its sum of digits gives 13845939.

It is not an unprimeable number, because it can be changed into a prime (13845919) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 135694 + ... + 135795.

It is an arithmetic number, because the mean of its divisors is an integer number (2443410).

Almost surely, 2^13845939 is an apocalyptic number.

13845939 is a deficient number, since it is larger than the sum of its proper divisors (5701341).

13845939 is a wasteful number, since it uses less digits than its factorization.

13845939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 271509.

The product of its digits is 116640, while the sum is 42.

The square root of 13845939 is about 3721.0131684798. The cubic root of 13845939 is about 240.1268947010.

The spelling of 13845939 in words is "thirteen million, eight hundred forty-five thousand, nine hundred thirty-nine".