1312358273 has 2 divisors, whose sum is σ = 1312358274. Its totient is φ = 1312358272.

The previous prime is 1312358239. The next prime is 1312358293. The reversal of 1312358273 is 3728532131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 753886849 + 558471424 = 27457^2 + 23632^2 .

It is a cyclic number.

It is not a de Polignac number, because 1312358273 - 2¹² = 1312354177 is a prime.

It is not a weakly prime, because it can be changed into another prime (1312358233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 656179136 + 656179137.

It is an arithmetic number, because the mean of its divisors is an integer number (656179137).

Almost surely, 2^1312358273 is an apocalyptic number.

It is an amenable number.

1312358273 is a deficient number, since it is larger than the sum of its proper divisors (1).

1312358273 is an equidigital number, since it uses as much as digits as its factorization.

1312358273 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 30240, while the sum is 35.

The square root of 1312358273 is about 36226.4857942362. The cubic root of 1312358273 is about 1094.8403742766.

The spelling of 1312358273 in words is "one billion, three hundred twelve million, three hundred fifty-eight thousand, two hundred seventy-three".