268045 has 4 divisors (see below), whose sum is σ = 321660. Its totient is φ = 214432.

The previous prime is 268043. The next prime is 268049. The reversal of 268045 is 540862.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 35721 + 232324 = 189^2 + 482^2 .

It is a cyclic number.

It is not a de Polignac number, because 268045 - 2¹ = 268043 is a prime.

It is a d-powerful number, because it can be written as 2¹¹ + 6³ + 0 + 8³ + 4⁹ + 5⁵ .

268045 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (268043) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26800 + ... + 26809.

It is an arithmetic number, because the mean of its divisors is an integer number (80415).

2²⁶⁸⁰⁴⁵ is an apocalyptic number.

It is an amenable number.

268045 is a deficient number, since it is larger than the sum of its proper divisors (53615).

268045 is an equidigital number, since it uses as much as digits as its factorization.

268045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53614.

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 268045 is about 517.7306249393. The cubic root of 268045 is about 64.4766656374.

The spelling of 268045 in words is "two hundred sixty-eight thousand, forty-five".