268337161 has 3 divisors (see below), whose sum is σ = 268353543. Its totient is φ = 268320780.

The previous prime is 268337141. The next prime is 268337183. The reversal of 268337161 is 161733862.

The square root of 268337161 is 16381.

It is a perfect power (a square), and thus also a powerful number.

268337161 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 32761 + 268304400 = 181^2 + 16380^2 .

It is a de Polignac number, because none of the positive numbers 2^k-268337161 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 268337161.

It is not an unprimeable number, because it can be changed into a prime (268337131) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 8191 + ... + 24571.

It is an arithmetic number, because the mean of its divisors is an integer number (89451181).

Almost surely, 2^268337161 is an apocalyptic number.

268337161 is the 16381-st square number.

268337161 is the 8191-st centered octagonal number.

It is an amenable number.

268337161 is a deficient number, since it is larger than the sum of its proper divisors (16382).

268337161 is an frugal number, since it uses more digits than its factorization.

268337161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32762 (or 16381 counting only the distinct ones).

The product of its digits is 36288, while the sum is 37.

The cubic root of 268337161 is about 645.0008300773. Note that the first 3 decimals are identical.

The spelling of 268337161 in words is "two hundred sixty-eight million, three hundred thirty-seven thousand, one hundred sixty-one".