13871235 has 64 divisors (see below), whose sum is σ = 28339200. Its totient is φ = 5640192.

The previous prime is 13871233. The next prime is 13871279. The reversal of 13871235 is 53217831.

It is not a de Polignac number, because 13871235 - 2¹ = 13871233 is a prime.

It is a super-2 number, since 2×13871235² = 384822320850450, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13871233) 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 63 ways as a sum of consecutive naturals, for example, 33711 + ... + 34119.

It is an arithmetic number, because the mean of its divisors is an integer number (442800).

Almost surely, 2^13871235 is an apocalyptic number.

13871235 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

13871235 is an abundant number, since it is smaller than the sum of its proper divisors (14467965).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13871235 is a wasteful number, since it uses less digits than its factorization.

13871235 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 460.

The product of its digits is 5040, while the sum is 30.

The square root of 13871235 is about 3724.4106916397. The cubic root of 13871235 is about 240.2730399483.

The spelling of 13871235 in words is "thirteen million, eight hundred seventy-one thousand, two hundred thirty-five".