1273248701 has 2 divisors, whose sum is σ = 1273248702. Its totient is φ = 1273248700.

The previous prime is 1273248689. The next prime is 1273248707. The reversal of 1273248701 is 1078423721.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1128624025 + 144624676 = 33595^2 + 12026^2 .

It is an emirp because it is prime and its reverse (1078423721) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1273248701 - 2³⁰ = 199506877 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1273248707) 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, 636624350 + 636624351.

It is an arithmetic number, because the mean of its divisors is an integer number (636624351).

Almost surely, 2^1273248701 is an apocalyptic number.

It is an amenable number.

1273248701 is a deficient number, since it is larger than the sum of its proper divisors (1).

1273248701 is an equidigital number, since it uses as much as digits as its factorization.

1273248701 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18816, while the sum is 35.

The square root of 1273248701 is about 35682.6106247847. The cubic root of 1273248701 is about 1083.8547383792.

The spelling of 1273248701 in words is "one billion, two hundred seventy-three million, two hundred forty-eight thousand, seven hundred one".