111197393 has 4 divisors (see below), whose sum is σ = 111219108. Its totient is φ = 111175680.

The previous prime is 111197377. The next prime is 111197399. The reversal of 111197393 is 393791111.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 48344209 + 62853184 = 6953^2 + 7928^2 .

It is a cyclic number.

It is not a de Polignac number, because 111197393 - 2⁴ = 111197377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111197399) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1553 + ... + 14993.

It is an arithmetic number, because the mean of its divisors is an integer number (27804777).

Almost surely, 2^111197393 is an apocalyptic number.

It is an amenable number.

111197393 is a deficient number, since it is larger than the sum of its proper divisors (21715).

111197393 is an equidigital number, since it uses as much as digits as its factorization.

111197393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21714.

The product of its digits is 5103, while the sum is 35.

The square root of 111197393 is about 10545.0174490135. The cubic root of 111197393 is about 480.8742645894.

The spelling of 111197393 in words is "one hundred eleven million, one hundred ninety-seven thousand, three hundred ninety-three".