306530047 has 2 divisors, whose sum is σ = 306530048. Its totient is φ = 306530046.

The previous prime is 306530023. The next prime is 306530071. The reversal of 306530047 is 740035603.

It is a balanced prime because it is at equal distance from previous prime (306530023) and next prime (306530071).

It is a cyclic number.

It is not a de Polignac number, because 306530047 - 2²³ = 298141439 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 306529997 and 306530024.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (306530017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 153265023 + 153265024.

It is an arithmetic number, because the mean of its divisors is an integer number (153265024).

Almost surely, 2^306530047 is an apocalyptic number.

306530047 is a deficient number, since it is larger than the sum of its proper divisors (1).

306530047 is an equidigital number, since it uses as much as digits as its factorization.

306530047 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7560, while the sum is 28.

The square root of 306530047 is about 17507.9995145076. Note that the first 3 decimals coincide. The cubic root of 306530047 is about 674.2552715549.

The spelling of 306530047 in words is "three hundred six million, five hundred thirty thousand, forty-seven".