1260565 has 8 divisors (see below), whose sum is σ = 1537848. Its totient is φ = 991680.

The previous prime is 1260551. The next prime is 1260569. The reversal of 1260565 is 5650621.

It can be written as a sum of positive squares in 4 ways, for example, as 26244 + 1234321 = 162^2 + 1111^2 .

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

It is not a de Polignac number, because 1260565 - 2⁷ = 1260437 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 (1260569) 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, 1762 + ... + 2371.

It is an arithmetic number, because the mean of its divisors is an integer number (192231).

2^1260565 is an apocalyptic number.

It is an amenable number.

1260565 is a deficient number, since it is larger than the sum of its proper divisors (277283).

1260565 is an equidigital number, since it uses as much as digits as its factorization.

1260565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4199.

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 1260565 is about 1122.7488588282. The cubic root of 1260565 is about 108.0243715003.

The spelling of 1260565 in words is "one million, two hundred sixty thousand, five hundred sixty-five".