1275263723 has 2 divisors, whose sum is σ = 1275263724. Its totient is φ = 1275263722.

The previous prime is 1275263677. The next prime is 1275263747. The reversal of 1275263723 is 3273625721.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (3273625721) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1275263723 - 2⁶ = 1275263659 is a prime.

It is not a weakly prime, because it can be changed into another prime (1275263623) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 637631861 + 637631862.

It is an arithmetic number, because the mean of its divisors is an integer number (637631862).

Almost surely, 2^1275263723 is an apocalyptic number.

1275263723 is a deficient number, since it is larger than the sum of its proper divisors (1).

1275263723 is an equidigital number, since it uses as much as digits as its factorization.

1275263723 is an evil number, because the sum of its binary digits is even.

The product of its digits is 105840, while the sum is 38.

The square root of 1275263723 is about 35710.8348124207. The cubic root of 1275263723 is about 1084.4262004554.

The spelling of 1275263723 in words is "one billion, two hundred seventy-five million, two hundred sixty-three thousand, seven hundred twenty-three".