113820859 has 4 divisors (see below), whose sum is σ = 118769616. Its totient is φ = 108872104.

The previous prime is 113820851. The next prime is 113820869. The reversal of 113820859 is 958028311.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 958028311 = 29 ⋅33035459.

It is a cyclic number.

It is not a de Polignac number, because 113820859 - 2³ = 113820851 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (113820851) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2474344 + ... + 2474389.

It is an arithmetic number, because the mean of its divisors is an integer number (29692404).

Almost surely, 2^113820859 is an apocalyptic number.

113820859 is a deficient number, since it is larger than the sum of its proper divisors (4948757).

113820859 is an equidigital number, since it uses as much as digits as its factorization.

113820859 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4948756.

The product of its (nonzero) digits is 17280, while the sum is 37.

The square root of 113820859 is about 10668.6859078333. The cubic root of 113820859 is about 484.6266429044.

The spelling of 113820859 in words is "one hundred thirteen million, eight hundred twenty thousand, eight hundred fifty-nine".