1275467617 has 2 divisors, whose sum is σ = 1275467618. Its totient is φ = 1275467616.

The previous prime is 1275467579. The next prime is 1275467657. The reversal of 1275467617 is 7167645721.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 928055296 + 347412321 = 30464^2 + 18639^2 .

It is an emirp because it is prime and its reverse (7167645721) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1275467617 is a prime.

It is not a weakly prime, because it can be changed into another prime (1275467657) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 637733808 + 637733809.

It is an arithmetic number, because the mean of its divisors is an integer number (637733809).

Almost surely, 2^1275467617 is an apocalyptic number.

It is an amenable number.

1275467617 is a deficient number, since it is larger than the sum of its proper divisors (1).

1275467617 is an equidigital number, since it uses as much as digits as its factorization.

1275467617 is an evil number, because the sum of its binary digits is even.

The product of its digits is 493920, while the sum is 46.

The square root of 1275467617 is about 35713.6894901661. The cubic root of 1275467617 is about 1084.4839914333.

The spelling of 1275467617 in words is "one billion, two hundred seventy-five million, four hundred sixty-seven thousand, six hundred seventeen".