268145 has 4 divisors (see below), whose sum is σ = 321780. Its totient is φ = 214512.

The previous prime is 268133. The next prime is 268153. The reversal of 268145 is 541862.

268145 = T₃₂₅ + T₃₂₆ + ... + T₃₂₉.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 541862 = 2 ⋅270931.

It can be written as a sum of positive squares in 2 ways, for example, as 187489 + 80656 = 433^2 + 284^2 .

It is a cyclic number.

It is not a de Polignac number, because 268145 - 2¹⁴ = 251761 is a prime.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 268145.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26810 + ... + 26819.

It is an arithmetic number, because the mean of its divisors is an integer number (80445).

2²⁶⁸¹⁴⁵ is an apocalyptic number.

It is an amenable number.

268145 is a deficient number, since it is larger than the sum of its proper divisors (53635).

268145 is an equidigital number, since it uses as much as digits as its factorization.

268145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53634.

The product of its digits is 1920, while the sum is 26.

The square root of 268145 is about 517.8271912521. The cubic root of 268145 is about 64.4846827799.

The spelling of 268145 in words is "two hundred sixty-eight thousand, one hundred forty-five".