1260565365 has 32 divisors (see below), whose sum is σ = 2042631936. Its totient is φ = 663782400.

The previous prime is 1260565337. The next prime is 1260565367. The reversal of 1260565365 is 5635650621.

1260565365 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1260565365 - 2¹⁰ = 1260564341 is a prime.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1260565367) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 390237 + ... + 393453.

It is an arithmetic number, because the mean of its divisors is an integer number (63832248).

Almost surely, 2^1260565365 is an apocalyptic number.

1260565365 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1260565365 is a deficient number, since it is larger than the sum of its proper divisors (782066571).

1260565365 is a wasteful number, since it uses less digits than its factorization.

1260565365 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3549.

The product of its (nonzero) digits is 162000, while the sum is 39.

The square root of 1260565365 is about 35504.4414827216. The cubic root of 1260565365 is about 1080.2438192657.

The spelling of 1260565365 in words is "one billion, two hundred sixty million, five hundred sixty-five thousand, three hundred sixty-five".