112170491 has 2 divisors, whose sum is σ = 112170492. Its totient is φ = 112170490.

The previous prime is 112170479. The next prime is 112170511. The reversal of 112170491 is 194071211.

It is a weak prime.

It is an emirp because it is prime and its reverse (194071211) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-112170491 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 112170491.

It is not a weakly prime, because it can be changed into another prime (112170451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56085245 + 56085246.

It is an arithmetic number, because the mean of its divisors is an integer number (56085246).

Almost surely, 2^112170491 is an apocalyptic number.

112170491 is a deficient number, since it is larger than the sum of its proper divisors (1).

112170491 is an equidigital number, since it uses as much as digits as its factorization.

112170491 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 504, while the sum is 26.

The square root of 112170491 is about 10591.0571238191. The cubic root of 112170491 is about 482.2729166688.

The spelling of 112170491 in words is "one hundred twelve million, one hundred seventy thousand, four hundred ninety-one".