268945155 has 24 divisors (see below), whose sum is σ = 468124800. Its totient is φ = 142836480.

The previous prime is 268945153. The next prime is 268945211. The reversal of 268945155 is 551549862.

It is not a de Polignac number, because 268945155 - 2¹ = 268945153 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 268945155.

It is not an unprimeable number, because it can be changed into a prime (268945153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1555 + ... + 23244.

It is an arithmetic number, because the mean of its divisors is an integer number (19505200).

Almost surely, 2^268945155 is an apocalyptic number.

268945155 is a deficient number, since it is larger than the sum of its proper divisors (199179645).

268945155 is a wasteful number, since it uses less digits than its factorization.

268945155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25051 (or 25048 counting only the distinct ones).

The product of its digits is 432000, while the sum is 45.

The square root of 268945155 is about 16399.5474022913. The cubic root of 268945155 is about 645.4876067686.

The spelling of 268945155 in words is "two hundred sixty-eight million, nine hundred forty-five thousand, one hundred fifty-five".