111594143 has 2 divisors, whose sum is σ = 111594144. Its totient is φ = 111594142.

The previous prime is 111594139. The next prime is 111594157. The reversal of 111594143 is 341495111.

It is a weak prime.

It is an emirp because it is prime and its reverse (341495111) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 111594143 - 2² = 111594139 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111594113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55797071 + 55797072.

It is an arithmetic number, because the mean of its divisors is an integer number (55797072).

Almost surely, 2^111594143 is an apocalyptic number.

111594143 is a deficient number, since it is larger than the sum of its proper divisors (1).

111594143 is an equidigital number, since it uses as much as digits as its factorization.

111594143 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2160, while the sum is 29.

The square root of 111594143 is about 10563.8129006529. The cubic root of 111594143 is about 481.4455022183.

The spelling of 111594143 in words is "one hundred eleven million, five hundred ninety-four thousand, one hundred forty-three".