320276263 has 2 divisors, whose sum is σ = 320276264. Its totient is φ = 320276262.

The previous prime is 320276237. The next prime is 320276269. The reversal of 320276263 is 362672023.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-320276263 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (320276269) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160138131 + 160138132.

It is an arithmetic number, because the mean of its divisors is an integer number (160138132).

Almost surely, 2^320276263 is an apocalyptic number.

320276263 is a deficient number, since it is larger than the sum of its proper divisors (1).

320276263 is an equidigital number, since it uses as much as digits as its factorization.

320276263 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18144, while the sum is 31.

The square root of 320276263 is about 17896.2639397166. The cubic root of 320276263 is about 684.1871566727.

The spelling of 320276263 in words is "three hundred twenty million, two hundred seventy-six thousand, two hundred sixty-three".