2112747115 has 4 divisors (see below), whose sum is σ = 2535296544. Its totient is φ = 1690197688.

The previous prime is 2112747083. The next prime is 2112747137. The reversal of 2112747115 is 5117472112.

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

It is a cyclic number.

It is not a de Polignac number, because 2112747115 - 2⁵ = 2112747083 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 211274707 + ... + 211274716.

It is an arithmetic number, because the mean of its divisors is an integer number (633824136).

Almost surely, 2^2112747115 is an apocalyptic number.

2112747115 is a deficient number, since it is larger than the sum of its proper divisors (422549429).

2112747115 is an equidigital number, since it uses as much as digits as its factorization.

2112747115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 422549428.

The product of its digits is 3920, while the sum is 31.

The square root of 2112747115 is about 45964.6289553174. The cubic root of 2112747115 is about 1283.1650018527.

The spelling of 2112747115 in words is "two billion, one hundred twelve million, seven hundred forty-seven thousand, one hundred fifteen".