306742063 has 2 divisors, whose sum is σ = 306742064. Its totient is φ = 306742062.

The previous prime is 306742001. The next prime is 306742103. The reversal of 306742063 is 360247603.

It is a strong prime.

It is an emirp because it is prime and its reverse (360247603) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 306742063 - 2²¹ = 304644911 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (306742363) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 153371031 + 153371032.

It is an arithmetic number, because the mean of its divisors is an integer number (153371032).

Almost surely, 2^306742063 is an apocalyptic number.

306742063 is a deficient number, since it is larger than the sum of its proper divisors (1).

306742063 is an equidigital number, since it uses as much as digits as its factorization.

306742063 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18144, while the sum is 31.

The square root of 306742063 is about 17514.0533001359. The cubic root of 306742063 is about 674.4106885754.

Adding to 306742063 its reverse (360247603), we get a palindrome (666989666).

The spelling of 306742063 in words is "three hundred six million, seven hundred forty-two thousand, sixty-three".