1260540365 has 16 divisors (see below), whose sum is σ = 1731103488. Its totient is φ = 863189376.

The previous prime is 1260540343. The next prime is 1260540371. The reversal of 1260540365 is 5630450621.

It is not a de Polignac number, because 1260540365 - 2²² = 1256346061 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1769 + ... + 50241.

It is an arithmetic number, because the mean of its divisors is an integer number (108193968).

Almost surely, 2^1260540365 is an apocalyptic number.

It is an amenable number.

1260540365 is a deficient number, since it is larger than the sum of its proper divisors (470563123).

1260540365 is an equidigital number, since it uses as much as digits as its factorization.

1260540365 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49228.

The product of its (nonzero) digits is 21600, while the sum is 32.

The square root of 1260540365 is about 35504.0894123480. The cubic root of 1260540365 is about 1080.2366779531.

Adding to 1260540365 its reverse (5630450621), we get a palindrome (6890990986).

The spelling of 1260540365 in words is "one billion, two hundred sixty million, five hundred forty thousand, three hundred sixty-five".