1273140433 has 2 divisors, whose sum is σ = 1273140434. Its totient is φ = 1273140432.

The previous prime is 1273140419. The next prime is 1273140493. The reversal of 1273140433 is 3340413721.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1207076049 + 66064384 = 34743^2 + 8128^2 .

It is an emirp because it is prime and its reverse (3340413721) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1273140433 - 2²¹ = 1271043281 is a prime.

It is not a weakly prime, because it can be changed into another prime (1273140493) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 636570216 + 636570217.

It is an arithmetic number, because the mean of its divisors is an integer number (636570217).

Almost surely, 2^1273140433 is an apocalyptic number.

It is an amenable number.

1273140433 is a deficient number, since it is larger than the sum of its proper divisors (1).

1273140433 is an equidigital number, since it uses as much as digits as its factorization.

1273140433 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6048, while the sum is 28.

The square root of 1273140433 is about 35681.0934950150. The cubic root of 1273140433 is about 1083.8240164129.

The spelling of 1273140433 in words is "one billion, two hundred seventy-three million, one hundred forty thousand, four hundred thirty-three".