13891255 has 36 divisors (see below), whose sum is σ = 20376360. Its totient is φ = 9061920.

The previous prime is 13891249. The next prime is 13891259. The reversal of 13891255 is 55219831.

It is not a de Polignac number, because 13891255 - 2⁷ = 13891127 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13891255.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13891259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 235416 + ... + 235474.

It is an arithmetic number, because the mean of its divisors is an integer number (566010).

Almost surely, 2^13891255 is an apocalyptic number.

13891255 is a deficient number, since it is larger than the sum of its proper divisors (6485105).

13891255 is an equidigital number, since it uses as much as digits as its factorization.

13891255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140 (or 102 counting only the distinct ones).

The product of its digits is 10800, while the sum is 34.

The square root of 13891255 is about 3727.0973960979. The cubic root of 13891255 is about 240.3885777004.

The spelling of 13891255 in words is "thirteen million, eight hundred ninety-one thousand, two hundred fifty-five".