1307135273 has 2 divisors, whose sum is σ = 1307135274. Its totient is φ = 1307135272.

The previous prime is 1307135251. The next prime is 1307135293. The reversal of 1307135273 is 3725317031.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 988976704 + 318158569 = 31448^2 + 17837^2 .

It is a cyclic number.

It is not a de Polignac number, because 1307135273 - 2⁶ = 1307135209 is a prime.

It is not a weakly prime, because it can be changed into another prime (1307135213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 653567636 + 653567637.

It is an arithmetic number, because the mean of its divisors is an integer number (653567637).

Almost surely, 2^1307135273 is an apocalyptic number.

It is an amenable number.

1307135273 is a deficient number, since it is larger than the sum of its proper divisors (1).

1307135273 is an equidigital number, since it uses as much as digits as its factorization.

1307135273 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13230, while the sum is 32.

The square root of 1307135273 is about 36154.3257854437. The cubic root of 1307135273 is about 1093.3860066479.

The spelling of 1307135273 in words is "one billion, three hundred seven million, one hundred thirty-five thousand, two hundred seventy-three".