112487209 has 2 divisors, whose sum is σ = 112487210. Its totient is φ = 112487208.

The previous prime is 112487173. The next prime is 112487261. The reversal of 112487209 is 902784211.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 101062809 + 11424400 = 10053^2 + 3380^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-112487209 is a prime.

It is not a weakly prime, because it can be changed into another prime (112484209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56243604 + 56243605.

It is an arithmetic number, because the mean of its divisors is an integer number (56243605).

Almost surely, 2^112487209 is an apocalyptic number.

It is an amenable number.

112487209 is a deficient number, since it is larger than the sum of its proper divisors (1).

112487209 is an equidigital number, since it uses as much as digits as its factorization.

112487209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8064, while the sum is 34.

The square root of 112487209 is about 10605.9987271355. The cubic root of 112487209 is about 482.7263959431.

The spelling of 112487209 in words is "one hundred twelve million, four hundred eighty-seven thousand, two hundred nine".