263161163 has 8 divisors (see below), whose sum is σ = 266716800. Its totient is φ = 259619008.

The previous prime is 263161117. The next prime is 263161183. The reversal of 263161163 is 361161362.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 263161163 - 2¹² = 263157067 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (263161103) 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 in 7 ways as a sum of consecutive naturals, for example, 39545 + ... + 45717.

It is an arithmetic number, because the mean of its divisors is an integer number (33339600).

Almost surely, 2^263161163 is an apocalyptic number.

263161163 is a deficient number, since it is larger than the sum of its proper divisors (3555637).

263161163 is an equidigital number, since it uses as much as digits as its factorization.

263161163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6741.

The product of its digits is 3888, while the sum is 29.

The square root of 263161163 is about 16222.2428473994. The cubic root of 263161163 is about 640.8267010421.

The spelling of 263161163 in words is "two hundred sixty-three million, one hundred sixty-one thousand, one hundred sixty-three".