112010209 has 4 divisors (see below), whose sum is σ = 115872660. Its totient is φ = 108147760.

The previous prime is 112010201. The next prime is 112010219. The reversal of 112010209 is 902010211.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 91107025 + 20903184 = 9545^2 + 4572^2 .

It is a cyclic number.

It is not a de Polignac number, because 112010209 - 2³ = 112010201 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 112010192 and 112010201.

It is not an unprimeable number, because it can be changed into a prime (112010201) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1931182 + ... + 1931239.

It is an arithmetic number, because the mean of its divisors is an integer number (28968165).

Almost surely, 2^112010209 is an apocalyptic number.

It is an amenable number.

112010209 is a deficient number, since it is larger than the sum of its proper divisors (3862451).

112010209 is an equidigital number, since it uses as much as digits as its factorization.

112010209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3862450.

The product of its (nonzero) digits is 36, while the sum is 16.

The square root of 112010209 is about 10583.4875631807. The cubic root of 112010209 is about 482.0430983081.

The spelling of 112010209 in words is "one hundred twelve million, ten thousand, two hundred nine".