112839381 has 12 divisors (see below), whose sum is σ = 167395852. Its totient is φ = 73192896.

The previous prime is 112839379. The next prime is 112839383. The reversal of 112839381 is 183938211.

It is an interprime number because it is at equal distance from previous prime (112839379) and next prime (112839383).

It can be written as a sum of positive squares in 2 ways, for example, as 107122500 + 5716881 = 10350^2 + 2391^2 .

It is not a de Polignac number, because 112839381 - 2¹ = 112839379 is a prime.

It is a super-2 number, since 2×112839381² = 25465451808926322, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112839383) 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, 169096 + ... + 169761.

Almost surely, 2^112839381 is an apocalyptic number.

It is an amenable number.

112839381 is a deficient number, since it is larger than the sum of its proper divisors (54556471).

112839381 is a wasteful number, since it uses less digits than its factorization.

112839381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 338900 (or 338897 counting only the distinct ones).

The product of its digits is 10368, while the sum is 36.

The square root of 112839381 is about 10622.5882439262. The cubic root of 112839381 is about 483.2296401680.

The spelling of 112839381 in words is "one hundred twelve million, eight hundred thirty-nine thousand, three hundred eighty-one".