307140313 has 2 divisors, whose sum is σ = 307140314. Its totient is φ = 307140312.

The previous prime is 307140311. The next prime is 307140331. The reversal of 307140313 is 313041703.

It is a happy number.

Together with next prime (307140331) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 178703424 + 128436889 = 13368^2 + 11333^2 .

It is a cyclic number.

It is not a de Polignac number, because 307140313 - 2¹ = 307140311 is a prime.

Together with 307140311, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (307140311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 153570156 + 153570157.

It is an arithmetic number, because the mean of its divisors is an integer number (153570157).

Almost surely, 2^307140313 is an apocalyptic number.

It is an amenable number.

307140313 is a deficient number, since it is larger than the sum of its proper divisors (1).

307140313 is an equidigital number, since it uses as much as digits as its factorization.

307140313 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 756, while the sum is 22.

The square root of 307140313 is about 17525.4190534777. The cubic root of 307140313 is about 674.7024297881.

The spelling of 307140313 in words is "three hundred seven million, one hundred forty thousand, three hundred thirteen".