260013205 has 4 divisors (see below), whose sum is σ = 312015852. Its totient is φ = 208010560.

The previous prime is 260013203. The next prime is 260013211. The reversal of 260013205 is 502310062.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 502310062 = 2 ⋅251155031.

It can be written as a sum of positive squares in 2 ways, for example, as 187388721 + 72624484 = 13689^2 + 8522^2 .

It is not a de Polignac number, because 260013205 - 2¹ = 260013203 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (260013203) 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, 26001316 + ... + 26001325.

It is an arithmetic number, because the mean of its divisors is an integer number (78003963).

Almost surely, 2^260013205 is an apocalyptic number.

It is an amenable number.

260013205 is a deficient number, since it is larger than the sum of its proper divisors (52002647).

260013205 is an equidigital number, since it uses as much as digits as its factorization.

260013205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52002646.

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 260013205 is about 16124.9249610657. The cubic root of 260013205 is about 638.2612349555.

Adding to 260013205 its reverse (502310062), we get a palindrome (762323267).

The spelling of 260013205 in words is "two hundred sixty million, thirteen thousand, two hundred five".