2271445907 has 4 divisors (see below), whose sum is σ = 2274186720. Its totient is φ = 2268705096.

The previous prime is 2271445867. The next prime is 2271445921. The reversal of 2271445907 is 7095441722.

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 2271445907 - 2¹⁰ = 2271444883 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2271445997) 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, 1369163 + ... + 1370820.

It is an arithmetic number, because the mean of its divisors is an integer number (568546680).

Almost surely, 2^2271445907 is an apocalyptic number.

2271445907 is a deficient number, since it is larger than the sum of its proper divisors (2740813).

2271445907 is an equidigital number, since it uses as much as digits as its factorization.

2271445907 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2740812.

The product of its (nonzero) digits is 141120, while the sum is 41.

The square root of 2271445907 is about 47659.6884903794. The cubic root of 2271445907 is about 1314.5208115877.

The spelling of 2271445907 in words is "two billion, two hundred seventy-one million, four hundred forty-five thousand, nine hundred seven".