13871124 has 36 divisors (see below), whose sum is σ = 35191156. Its totient is φ = 4606848.

The previous prime is 13871119. The next prime is 13871129. The reversal of 13871124 is 42117831.

It is an interprime number because it is at equal distance from previous prime (13871119) and next prime (13871129).

It can be written as a sum of positive squares in 2 ways, for example, as 11088900 + 2782224 = 3330^2 + 1668^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13871129) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12912 + ... + 13944.

Almost surely, 2^13871124 is an apocalyptic number.

It is an amenable number.

13871124 is an abundant number, since it is smaller than the sum of its proper divisors (21320032).

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

13871124 is a wasteful number, since it uses less digits than its factorization.

13871124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1416 (or 1411 counting only the distinct ones).

The product of its digits is 1344, while the sum is 27.

The square root of 13871124 is about 3724.3957899235. The cubic root of 13871124 is about 240.2723990445.

Adding to 13871124 its reverse (42117831), we get a palindrome (55988955).

The spelling of 13871124 in words is "thirteen million, eight hundred seventy-one thousand, one hundred twenty-four".