260100605 has 4 divisors (see below), whose sum is σ = 312120732. Its totient is φ = 208080480.

The previous prime is 260100569. The next prime is 260100611. The reversal of 260100605 is 506001062.

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 182061049 + 78039556 = 13493^2 + 8834^2 .

It is not a de Polignac number, because 260100605 - 2¹⁸ = 259838461 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

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, 26010056 + ... + 26010065.

It is an arithmetic number, because the mean of its divisors is an integer number (78030183).

Almost surely, 2^260100605 is an apocalyptic number.

It is an amenable number.

260100605 is a deficient number, since it is larger than the sum of its proper divisors (52020127).

260100605 is an equidigital number, since it uses as much as digits as its factorization.

260100605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52020126.

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 260100605 is about 16127.6348234947. The cubic root of 260100605 is about 638.3327413017.

Adding to 260100605 its reverse (506001062), we get a palindrome (766101667).

The spelling of 260100605 in words is "two hundred sixty million, one hundred thousand, six hundred five".