260540545 has 8 divisors (see below), whose sum is σ = 315872424. Its totient is φ = 206283264.

The previous prime is 260540513. The next prime is 260540549. The reversal of 260540545 is 545045062.

It can be written as a sum of positive squares in 4 ways, for example, as 38142976 + 222397569 = 6176^2 + 14913^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 260540545 - 2⁵ = 260540513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (260540549) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 268114 + ... + 269083.

It is an arithmetic number, because the mean of its divisors is an integer number (39484053).

Almost surely, 2^260540545 is an apocalyptic number.

It is an amenable number.

260540545 is a deficient number, since it is larger than the sum of its proper divisors (55331879).

260540545 is an equidigital number, since it uses as much as digits as its factorization.

260540545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 537299.

The product of its (nonzero) digits is 24000, while the sum is 31.

The square root of 260540545 is about 16141.2683826272. The cubic root of 260540545 is about 638.6924353540.

The spelling of 260540545 in words is "two hundred sixty million, five hundred forty thousand, five hundred forty-five".