13871139 has 8 divisors (see below), whose sum is σ = 19299072. Its totient is φ = 8845320.

The previous prime is 13871129. The next prime is 13871141. The reversal of 13871139 is 93117831.

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

It is not a de Polignac number, because 13871139 - 2¹² = 13867043 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13871119) 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 7 ways as a sum of consecutive naturals, for example, 100447 + ... + 100584.

It is an arithmetic number, because the mean of its divisors is an integer number (2412384).

Almost surely, 2^13871139 is an apocalyptic number.

13871139 is a deficient number, since it is larger than the sum of its proper divisors (5427933).

13871139 is a wasteful number, since it uses less digits than its factorization.

13871139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201057.

The product of its digits is 4536, while the sum is 33.

The square root of 13871139 is about 3724.3978036724. The cubic root of 13871139 is about 240.2724856533.

The spelling of 13871139 in words is "thirteen million, eight hundred seventy-one thousand, one hundred thirty-nine".