268815195 has 24 divisors (see below), whose sum is σ = 508306032. Its totient is φ = 130334400.

The previous prime is 268815163. The next prime is 268815233. The reversal of 268815195 is 591518862.

It is a happy number.

It is not a de Polignac number, because 268815195 - 2⁵ = 268815163 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 268815195.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 271036 + ... + 272025.

It is an arithmetic number, because the mean of its divisors is an integer number (21179418).

Almost surely, 2^268815195 is an apocalyptic number.

268815195 is a deficient number, since it is larger than the sum of its proper divisors (239490837).

268815195 is a wasteful number, since it uses less digits than its factorization.

268815195 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 543083 (or 543080 counting only the distinct ones).

The product of its digits is 172800, while the sum is 45.

The square root of 268815195 is about 16395.5846190369. The cubic root of 268815195 is about 645.3836189189.

The spelling of 268815195 in words is "two hundred sixty-eight million, eight hundred fifteen thousand, one hundred ninety-five".