305061047 has 2 divisors, whose sum is σ = 305061048. Its totient is φ = 305061046.

The previous prime is 305061019. The next prime is 305061059. The reversal of 305061047 is 740160503.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 305061047 - 2¹⁰ = 305060023 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (305061077) 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, 152530523 + 152530524.

It is an arithmetic number, because the mean of its divisors is an integer number (152530524).

Almost surely, 2^305061047 is an apocalyptic number.

305061047 is a deficient number, since it is larger than the sum of its proper divisors (1).

305061047 is an equidigital number, since it uses as much as digits as its factorization.

305061047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2520, while the sum is 26.

The square root of 305061047 is about 17465.9968796516. The cubic root of 305061047 is about 673.1764567434.

The spelling of 305061047 in words is "three hundred five million, sixty-one thousand, forty-seven".