1260000505 has 8 divisors (see below), whose sum is σ = 1516772232. Its totient is φ = 1004819328.

The previous prime is 1260000503. The next prime is 1260000527. The reversal of 1260000505 is 5050000621.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 52577001 + 1207423504 = 7251^2 + 34748^2 .

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 1260000505 - 2¹ = 1260000503 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1260000503) 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, 395892 + ... + 399061.

It is an arithmetic number, because the mean of its divisors is an integer number (189596529).

Almost surely, 2^1260000505 is an apocalyptic number.

It is an amenable number.

1260000505 is a deficient number, since it is larger than the sum of its proper divisors (256771727).

1260000505 is an equidigital number, since it uses as much as digits as its factorization.

1260000505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 795275.

The product of its (nonzero) digits is 300, while the sum is 19.

The square root of 1260000505 is about 35496.4858119786. The cubic root of 1260000505 is about 1080.0824425520.

The spelling of 1260000505 in words is "one billion, two hundred sixty million, five hundred five", and thus it is an aban number.