305342263 has 2 divisors, whose sum is σ = 305342264. Its totient is φ = 305342262.

The previous prime is 305342251. The next prime is 305342333. The reversal of 305342263 is 362243503.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 305342263 - 2⁵ = 305342231 is a prime.

It is a super-2 number, since 2×305342263² = 186467795147922338, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (305342203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 152671131 + 152671132.

It is an arithmetic number, because the mean of its divisors is an integer number (152671132).

Almost surely, 2^305342263 is an apocalyptic number.

305342263 is a deficient number, since it is larger than the sum of its proper divisors (1).

305342263 is an equidigital number, since it uses as much as digits as its factorization.

305342263 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12960, while the sum is 28.

The square root of 305342263 is about 17474.0454102649. The cubic root of 305342263 is about 673.3832457908.

Adding to 305342263 its reverse (362243503), we get a palindrome (667585766).

The spelling of 305342263 in words is "three hundred five million, three hundred forty-two thousand, two hundred sixty-three".