1272539503 has 2 divisors, whose sum is σ = 1272539504. Its totient is φ = 1272539502.

The previous prime is 1272539473. The next prime is 1272539531. The reversal of 1272539503 is 3059352721.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1272539503 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1272539563) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 636269751 + 636269752.

It is an arithmetic number, because the mean of its divisors is an integer number (636269752).

Almost surely, 2^1272539503 is an apocalyptic number.

1272539503 is a deficient number, since it is larger than the sum of its proper divisors (1).

1272539503 is an equidigital number, since it uses as much as digits as its factorization.

1272539503 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 56700, while the sum is 37.

The square root of 1272539503 is about 35672.6716549237. The cubic root of 1272539503 is about 1083.6534657418.

The spelling of 1272539503 in words is "one billion, two hundred seventy-two million, five hundred thirty-nine thousand, five hundred three".