112142197 has 2 divisors, whose sum is σ = 112142198. Its totient is φ = 112142196.

The previous prime is 112142179. The next prime is 112142203. The reversal of 112142197 is 791241211.

Together with previous prime (112142179) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 76632516 + 35509681 = 8754^2 + 5959^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-112142197 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (112142137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56071098 + 56071099.

It is an arithmetic number, because the mean of its divisors is an integer number (56071099).

Almost surely, 2^112142197 is an apocalyptic number.

It is an amenable number.

112142197 is a deficient number, since it is larger than the sum of its proper divisors (1).

112142197 is an equidigital number, since it uses as much as digits as its factorization.

112142197 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1008, while the sum is 28.

The square root of 112142197 is about 10589.7212900057. The cubic root of 112142197 is about 482.2323635868.

The spelling of 112142197 in words is "one hundred twelve million, one hundred forty-two thousand, one hundred ninety-seven".