2225994123 has 4 divisors (see below), whose sum is σ = 2967992168. Its totient is φ = 1483996080.

The previous prime is 2225994083. The next prime is 2225994143. The reversal of 2225994123 is 3214995222.

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

It is a de Polignac number, because none of the positive numbers 2^k-2225994123 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2225994143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 370999018 + ... + 370999023.

It is an arithmetic number, because the mean of its divisors is an integer number (741998042).

Almost surely, 2^2225994123 is an apocalyptic number.

2225994123 is a deficient number, since it is larger than the sum of its proper divisors (741998045).

2225994123 is an equidigital number, since it uses as much as digits as its factorization.

2225994123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 741998044.

The product of its digits is 77760, while the sum is 39.

The square root of 2225994123 is about 47180.4421662197. The cubic root of 2225994123 is about 1305.6937876650.

The spelling of 2225994123 in words is "two billion, two hundred twenty-five million, nine hundred ninety-four thousand, one hundred twenty-three".