260045 has 4 divisors (see below), whose sum is σ = 312060. Its totient is φ = 208032.

The previous prime is 260023. The next prime is 260047. The reversal of 260045 is 540062.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 540062 = 2 ⋅270031.

It can be written as a sum of positive squares in 2 ways, for example, as 203401 + 56644 = 451^2 + 238^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-260045 is a prime.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 260045.

It is not an unprimeable number, because it can be changed into a prime (260047) 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, 26000 + ... + 26009.

It is an arithmetic number, because the mean of its divisors is an integer number (78015).

2²⁶⁰⁰⁴⁵ is an apocalyptic number.

It is an amenable number.

260045 is a deficient number, since it is larger than the sum of its proper divisors (52015).

260045 is an equidigital number, since it uses as much as digits as its factorization.

260045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52014.

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 260045 is about 509.9460755805. The cubic root of 260045 is about 63.8287249902.

Adding to 260045 its sum of digits (17), we get a palindrome (260062).

The spelling of 260045 in words is "two hundred sixty thousand, forty-five".