1260801305 has 8 divisors (see below), whose sum is σ = 1516274952. Its totient is φ = 1006432128.

The previous prime is 1260801271. The next prime is 1260801317. The reversal of 1260801305 is 5031080621.

It can be written as a sum of positive squares in 4 ways, for example, as 97377424 + 1163423881 = 9868^2 + 34109^2 .

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 1260801305 - 2²⁰ = 1259752729 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 273602 + ... + 278171.

It is an arithmetic number, because the mean of its divisors is an integer number (189534369).

Almost surely, 2^1260801305 is an apocalyptic number.

It is an amenable number.

1260801305 is a deficient number, since it is larger than the sum of its proper divisors (255473647).

1260801305 is an equidigital number, since it uses as much as digits as its factorization.

1260801305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 552235.

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 1260801305 is about 35507.7640101429. The cubic root of 1260801305 is about 1080.3112114676.

Adding to 1260801305 its reverse (5031080621), we get a palindrome (6291881926).

The spelling of 1260801305 in words is "one billion, two hundred sixty million, eight hundred one thousand, three hundred five".