247055183 has 2 divisors, whose sum is σ = 247055184. Its totient is φ = 247055182.

The previous prime is 247055161. The next prime is 247055201. The reversal of 247055183 is 381550742.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 247055183 - 2¹⁶ = 246989647 is a prime.

It is a super-2 number, since 2×247055183² = 122072526894326978, which contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (247055143) 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, 123527591 + 123527592.

It is an arithmetic number, because the mean of its divisors is an integer number (123527592).

Almost surely, 2^247055183 is an apocalyptic number.

247055183 is a deficient number, since it is larger than the sum of its proper divisors (1).

247055183 is an equidigital number, since it uses as much as digits as its factorization.

247055183 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 33600, while the sum is 35.

The square root of 247055183 is about 15717.9891525602. The cubic root of 247055183 is about 627.4772576320.

The spelling of 247055183 in words is "two hundred forty-seven million, fifty-five thousand, one hundred eighty-three".