111440859 has 8 divisors (see below), whose sum is σ = 148910592. Its totient is φ = 74132520.

The previous prime is 111440843. The next prime is 111440867. The reversal of 111440859 is 958044111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 111440859 - 2⁴ = 111440843 is a prime.

It is not an unprimeable number, because it can be changed into a prime (111440809) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38727 + ... + 41504.

It is an arithmetic number, because the mean of its divisors is an integer number (18613824).

Almost surely, 2^111440859 is an apocalyptic number.

111440859 is a deficient number, since it is larger than the sum of its proper divisors (37469733).

111440859 is an equidigital number, since it uses as much as digits as its factorization.

111440859 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80697.

The product of its (nonzero) digits is 5760, while the sum is 33.

The square root of 111440859 is about 10556.5552620161. Note that the first 3 decimals coincide. The cubic root of 111440859 is about 481.2249658311.

The spelling of 111440859 in words is "one hundred eleven million, four hundred forty thousand, eight hundred fifty-nine".