1272545711 has 2 divisors, whose sum is σ = 1272545712. Its totient is φ = 1272545710.

The previous prime is 1272545669. The next prime is 1272545717. The reversal of 1272545711 is 1175452721.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1272545711 - 2⁶ = 1272545647 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1272545717) 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 as a sum of consecutive naturals, namely, 636272855 + 636272856.

It is an arithmetic number, because the mean of its divisors is an integer number (636272856).

Almost surely, 2^1272545711 is an apocalyptic number.

1272545711 is a deficient number, since it is larger than the sum of its proper divisors (1).

1272545711 is an equidigital number, since it uses as much as digits as its factorization.

1272545711 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 19600, while the sum is 35.

The square root of 1272545711 is about 35672.7586682051. The cubic root of 1272545711 is about 1083.6552279162.

The spelling of 1272545711 in words is "one billion, two hundred seventy-two million, five hundred forty-five thousand, seven hundred eleven".