268547161 has 2 divisors, whose sum is σ = 268547162. Its totient is φ = 268547160.

The previous prime is 268547053. The next prime is 268547177. The reversal of 268547161 is 161745862.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 172134400 + 96412761 = 13120^2 + 9819^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-268547161 is a prime.

It is not a weakly prime, because it can be changed into another prime (268577161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 134273580 + 134273581.

It is an arithmetic number, because the mean of its divisors is an integer number (134273581).

Almost surely, 2^268547161 is an apocalyptic number.

It is an amenable number.

268547161 is a deficient number, since it is larger than the sum of its proper divisors (1).

268547161 is an equidigital number, since it uses as much as digits as its factorization.

268547161 is an evil number, because the sum of its binary digits is even.

The product of its digits is 80640, while the sum is 40.

The square root of 268547161 is about 16387.4086114919. The cubic root of 268547161 is about 645.1690448893.

The spelling of 268547161 in words is "two hundred sixty-eight million, five hundred forty-seven thousand, one hundred sixty-one".