111893 has 2 divisors, whose sum is σ = 111894. Its totient is φ = 111892.

The previous prime is 111871. The next prime is 111913. The reversal of 111893 is 398111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 97969 + 13924 = 313^2 + 118^2 .

It is a cyclic number.

It is not a de Polignac number, because 111893 - 2⁶ = 111829 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111833) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55946 + 55947.

It is an arithmetic number, because the mean of its divisors is an integer number (55947).

2¹¹¹⁸⁹³ is an apocalyptic number.

It is an amenable number.

111893 is a deficient number, since it is larger than the sum of its proper divisors (1).

111893 is an equidigital number, since it uses as much as digits as its factorization.

111893 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 216, while the sum is 23.

The square root of 111893 is about 334.5041105876. The cubic root of 111893 is about 48.1874900817.

The spelling of 111893 in words is "one hundred eleven thousand, eight hundred ninety-three".