1273073764 has 12 divisors (see below), whose sum is σ = 2358930924. Its totient is φ = 599093504.

The previous prime is 1273073761. The next prime is 1273073783. The reversal of 1273073764 is 4673703721.

It can be written as a sum of positive squares in 2 ways, for example, as 536385600 + 736688164 = 23160^2 + 27142^2 .

It is not an unprimeable number, because it can be changed into a prime (1273073761) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9360769 + ... + 9360904.

It is an arithmetic number, because the mean of its divisors is an integer number (196577577).

Almost surely, 2^1273073764 is an apocalyptic number.

It is an amenable number.

1273073764 is a deficient number, since it is larger than the sum of its proper divisors (1085857160).

1273073764 is a wasteful number, since it uses less digits than its factorization.

1273073764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18721694 (or 18721692 counting only the distinct ones).

The product of its (nonzero) digits is 148176, while the sum is 40.

The square root of 1273073764 is about 35680.1592485235. The cubic root of 1273073764 is about 1083.8050976504.

The spelling of 1273073764 in words is "one billion, two hundred seventy-three million, seventy-three thousand, seven hundred sixty-four".