2271245045 has 4 divisors (see below), whose sum is σ = 2725494060. Its totient is φ = 1816996032.

The previous prime is 2271245021. The next prime is 2271245071. The reversal of 2271245045 is 5405421722.

2271245045 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5405421722 = 2 ⋅2702710861.

It can be written as a sum of positive squares in 2 ways, for example, as 1287230884 + 984014161 = 35878^2 + 31369^2 .

It is a cyclic number.

It is not a de Polignac number, because 2271245045 - 2¹⁶ = 2271179509 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 227124500 + ... + 227124509.

It is an arithmetic number, because the mean of its divisors is an integer number (681373515).

Almost surely, 2^2271245045 is an apocalyptic number.

It is an amenable number.

2271245045 is a deficient number, since it is larger than the sum of its proper divisors (454249015).

2271245045 is an equidigital number, since it uses as much as digits as its factorization.

2271245045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 454249014.

The product of its (nonzero) digits is 22400, while the sum is 32.

The square root of 2271245045 is about 47657.5811912439. The cubic root of 2271245045 is about 1314.4820631321.

Adding to 2271245045 its reverse (5405421722), we get a palindrome (7676666767).

The spelling of 2271245045 in words is "two billion, two hundred seventy-one million, two hundred forty-five thousand, forty-five".