307140937 has 2 divisors, whose sum is σ = 307140938. Its totient is φ = 307140936.

The previous prime is 307140929. The next prime is 307140979. The reversal of 307140937 is 739041703.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 303770041 + 3370896 = 17429^2 + 1836^2 .

It is an emirp because it is prime and its reverse (739041703) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 307140937 - 2³ = 307140929 is a prime.

It is not a weakly prime, because it can be changed into another prime (307140637) 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 as a sum of consecutive naturals, namely, 153570468 + 153570469.

It is an arithmetic number, because the mean of its divisors is an integer number (153570469).

Almost surely, 2^307140937 is an apocalyptic number.

It is an amenable number.

307140937 is a deficient number, since it is larger than the sum of its proper divisors (1).

307140937 is an equidigital number, since it uses as much as digits as its factorization.

307140937 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15876, while the sum is 34.

The square root of 307140937 is about 17525.4368561814. The cubic root of 307140937 is about 674.7028867063.

The spelling of 307140937 in words is "three hundred seven million, one hundred forty thousand, nine hundred thirty-seven".