1272845227 has 2 divisors, whose sum is σ = 1272845228. Its totient is φ = 1272845226.

The previous prime is 1272845179. The next prime is 1272845237. The reversal of 1272845227 is 7225482721.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1272845227 - 2⁷ = 1272845099 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1272845227.

It is not a weakly prime, because it can be changed into another prime (1272845237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 636422613 + 636422614.

It is an arithmetic number, because the mean of its divisors is an integer number (636422614).

Almost surely, 2^1272845227 is an apocalyptic number.

1272845227 is a deficient number, since it is larger than the sum of its proper divisors (1).

1272845227 is an equidigital number, since it uses as much as digits as its factorization.

1272845227 is an evil number, because the sum of its binary digits is even.

The product of its digits is 125440, while the sum is 40.

The square root of 1272845227 is about 35676.9565265873. The cubic root of 1272845227 is about 1083.7402403484.

The spelling of 1272845227 in words is "one billion, two hundred seventy-two million, eight hundred forty-five thousand, two hundred twenty-seven".