307412639 has 2 divisors, whose sum is σ = 307412640. Its totient is φ = 307412638.

The previous prime is 307412593. The next prime is 307412653. The reversal of 307412639 is 936214703.

It is a strong prime.

It is an emirp because it is prime and its reverse (936214703) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-307412639 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 307412599 and 307412608.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (307412659) 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, 153706319 + 153706320.

It is an arithmetic number, because the mean of its divisors is an integer number (153706320).

Almost surely, 2^307412639 is an apocalyptic number.

307412639 is a deficient number, since it is larger than the sum of its proper divisors (1).

307412639 is an equidigital number, since it uses as much as digits as its factorization.

307412639 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27216, while the sum is 35.

The square root of 307412639 is about 17533.1867896284. The cubic root of 307412639 is about 674.9017792155.

The spelling of 307412639 in words is "three hundred seven million, four hundred twelve thousand, six hundred thirty-nine".