263260117 has 2 divisors, whose sum is σ = 263260118. Its totient is φ = 263260116.

The previous prime is 263260111. The next prime is 263260163. The reversal of 263260117 is 711062362.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 262634436 + 625681 = 16206^2 + 791^2 .

It is a cyclic number.

It is not a de Polignac number, because 263260117 - 2²³ = 254871509 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (263260111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 131630058 + 131630059.

It is an arithmetic number, because the mean of its divisors is an integer number (131630059).

Almost surely, 2^263260117 is an apocalyptic number.

It is an amenable number.

263260117 is a deficient number, since it is larger than the sum of its proper divisors (1).

263260117 is an equidigital number, since it uses as much as digits as its factorization.

263260117 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 263260117 is about 16225.2925089195. The cubic root of 263260117 is about 640.9070123087.

The spelling of 263260117 in words is "two hundred sixty-three million, two hundred sixty thousand, one hundred seventeen".