30309697147 has 2 divisors, whose sum is σ = 30309697148. Its totient is φ = 30309697146.

The previous prime is 30309697139. The next prime is 30309697181. The reversal of 30309697147 is 74179690303.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 30309697147 - 2³ = 30309697139 is a prime.

It is a super-2 number, since 2×30309697147² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 30309697147.

It is not a weakly prime, because it can be changed into another prime (30309697447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15154848573 + 15154848574.

It is an arithmetic number, because the mean of its divisors is an integer number (15154848574).

Almost surely, 2^30309697147 is an apocalyptic number.

30309697147 is a deficient number, since it is larger than the sum of its proper divisors (1).

30309697147 is an equidigital number, since it uses as much as digits as its factorization.

30309697147 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 857304, while the sum is 49.

The spelling of 30309697147 in words is "thirty billion, three hundred nine million, six hundred ninety-seven thousand, one hundred forty-seven".