112143191 has 2 divisors, whose sum is σ = 112143192. Its totient is φ = 112143190.

The previous prime is 112143139. The next prime is 112143197. The reversal of 112143191 is 191341211.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 112143191 - 2⁶ = 112143127 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (112143197) 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, 56071595 + 56071596.

It is an arithmetic number, because the mean of its divisors is an integer number (56071596).

Almost surely, 2^112143191 is an apocalyptic number.

112143191 is a deficient number, since it is larger than the sum of its proper divisors (1).

112143191 is an equidigital number, since it uses as much as digits as its factorization.

112143191 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 112143191 is about 10589.7682222039. The cubic root of 112143191 is about 482.2337883777.

The spelling of 112143191 in words is "one hundred twelve million, one hundred forty-three thousand, one hundred ninety-one".