111416197 has 2 divisors, whose sum is σ = 111416198. Its totient is φ = 111416196.

The previous prime is 111416189. The next prime is 111416267. The reversal of 111416197 is 791614111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 92179201 + 19236996 = 9601^2 + 4386^2 .

It is an emirp because it is prime and its reverse (791614111) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 111416197 - 2³ = 111416189 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111416167) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55708098 + 55708099.

It is an arithmetic number, because the mean of its divisors is an integer number (55708099).

Almost surely, 2^111416197 is an apocalyptic number.

It is an amenable number.

111416197 is a deficient number, since it is larger than the sum of its proper divisors (1).

111416197 is an equidigital number, since it uses as much as digits as its factorization.

111416197 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1512, while the sum is 31.

The square root of 111416197 is about 10555.3871080127. The cubic root of 111416197 is about 481.1894646520.

The spelling of 111416197 in words is "one hundred eleven million, four hundred sixteen thousand, one hundred ninety-seven".