111594859 has 2 divisors, whose sum is σ = 111594860. Its totient is φ = 111594858.

The previous prime is 111594793. The next prime is 111594869. The reversal of 111594859 is 958495111.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 111594859 - 2¹⁷ = 111463787 is a prime.

It is not a weakly prime, because it can be changed into another prime (111594869) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55797429 + 55797430.

It is an arithmetic number, because the mean of its divisors is an integer number (55797430).

Almost surely, 2^111594859 is an apocalyptic number.

111594859 is a deficient number, since it is larger than the sum of its proper divisors (1).

111594859 is an equidigital number, since it uses as much as digits as its factorization.

111594859 is an evil number, because the sum of its binary digits is even.

The product of its digits is 64800, while the sum is 43.

The square root of 111594859 is about 10563.8467898773. The cubic root of 111594859 is about 481.4465318847.

The spelling of 111594859 in words is "one hundred eleven million, five hundred ninety-four thousand, eight hundred fifty-nine".