111172093 has 2 divisors, whose sum is σ = 111172094. Its totient is φ = 111172092.

The previous prime is 111172081. The next prime is 111172147. The reversal of 111172093 is 390271111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 91431844 + 19740249 = 9562^2 + 4443^2 .

It is an emirp because it is prime and its reverse (390271111) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111172093 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111172393) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55586046 + 55586047.

It is an arithmetic number, because the mean of its divisors is an integer number (55586047).

Almost surely, 2^111172093 is an apocalyptic number.

It is an amenable number.

111172093 is a deficient number, since it is larger than the sum of its proper divisors (1).

111172093 is an equidigital number, since it uses as much as digits as its factorization.

111172093 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 378, while the sum is 25.

The square root of 111172093 is about 10543.8177620822. The cubic root of 111172093 is about 480.8377917868.

The spelling of 111172093 in words is "one hundred eleven million, one hundred seventy-two thousand, ninety-three".