112839539 has 4 divisors (see below), whose sum is σ = 112909056. Its totient is φ = 112770024.

The previous prime is 112839509. The next prime is 112839547. The reversal of 112839539 is 935938211.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 935938211 = 13 ⋅71995247.

It is a cyclic number.

It is not a de Polignac number, because 112839539 - 2¹⁶ = 112774003 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 112839496 and 112839505.

It is not an unprimeable number, because it can be changed into a prime (112839509) 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 3 ways as a sum of consecutive naturals, for example, 32264 + ... + 35589.

It is an arithmetic number, because the mean of its divisors is an integer number (28227264).

Almost surely, 2^112839539 is an apocalyptic number.

112839539 is a deficient number, since it is larger than the sum of its proper divisors (69517).

112839539 is an equidigital number, since it uses as much as digits as its factorization.

112839539 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69516.

The product of its digits is 58320, while the sum is 41.

The square root of 112839539 is about 10622.5956809059. The cubic root of 112839539 is about 483.2298657105.

The spelling of 112839539 in words is "one hundred twelve million, eight hundred thirty-nine thousand, five hundred thirty-nine".