18275263 has 2 divisors, whose sum is σ = 18275264. Its totient is φ = 18275262.

The previous prime is 18275261. The next prime is 18275269. The reversal of 18275263 is 36257281.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 18275263 - 2¹ = 18275261 is a prime.

Together with 18275261, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18275261) 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, 9137631 + 9137632.

It is an arithmetic number, because the mean of its divisors is an integer number (9137632).

Almost surely, 2^18275263 is an apocalyptic number.

18275263 is a deficient number, since it is larger than the sum of its proper divisors (1).

18275263 is an equidigital number, since it uses as much as digits as its factorization.

18275263 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20160, while the sum is 34.

The square root of 18275263 is about 4274.9576606090. The cubic root of 18275263 is about 263.4033001429.

The spelling of 18275263 in words is "eighteen million, two hundred seventy-five thousand, two hundred sixty-three".