112985491 has 2 divisors, whose sum is σ = 112985492. Its totient is φ = 112985490.

The previous prime is 112985489. The next prime is 112985497. The reversal of 112985491 is 194589211.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 112985491 - 2¹ = 112985489 is a prime.

It is a super-2 number, since 2×112985491² = 25531442353022162, which contains 22 as substring.

Together with 112985489, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (112985497) 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 as a sum of consecutive naturals, namely, 56492745 + 56492746.

It is an arithmetic number, because the mean of its divisors is an integer number (56492746).

Almost surely, 2^112985491 is an apocalyptic number.

112985491 is a deficient number, since it is larger than the sum of its proper divisors (1).

112985491 is an equidigital number, since it uses as much as digits as its factorization.

112985491 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 25920, while the sum is 40.

The square root of 112985491 is about 10629.4633448731. The cubic root of 112985491 is about 483.4381200735.

The spelling of 112985491 in words is "one hundred twelve million, nine hundred eighty-five thousand, four hundred ninety-one".