1312973773 has 2 divisors, whose sum is σ = 1312973774. Its totient is φ = 1312973772.

The previous prime is 1312973743. The next prime is 1312973803. The reversal of 1312973773 is 3773792131.

It is a balanced prime because it is at equal distance from previous prime (1312973743) and next prime (1312973803).

It can be written as a sum of positive squares in only one way, i.e., 941139684 + 371834089 = 30678^2 + 19283^2 .

It is a cyclic number.

It is not a de Polignac number, because 1312973773 - 2⁹ = 1312973261 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1312973723) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 656486886 + 656486887.

It is an arithmetic number, because the mean of its divisors is an integer number (656486887).

Almost surely, 2^1312973773 is an apocalyptic number.

It is an amenable number.

1312973773 is a deficient number, since it is larger than the sum of its proper divisors (1).

1312973773 is an equidigital number, since it uses as much as digits as its factorization.

1312973773 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 166698, while the sum is 43.

The square root of 1312973773 is about 36234.9799641175. The cubic root of 1312973773 is about 1095.0115086744.

The spelling of 1312973773 in words is "one billion, three hundred twelve million, nine hundred seventy-three thousand, seven hundred seventy-three".