1260564287 has 8 divisors (see below), whose sum is σ = 1269918000. Its totient is φ = 1251222784.

The previous prime is 1260564271. The next prime is 1260564293. The reversal of 1260564287 is 7824650621.

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 1260564287 - 2⁴ = 1260564271 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 (1260564247) 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, 346703 + ... + 350319.

It is an arithmetic number, because the mean of its divisors is an integer number (158739750).

Almost surely, 2^1260564287 is an apocalyptic number.

1260564287 is a deficient number, since it is larger than the sum of its proper divisors (9353713).

1260564287 is a wasteful number, since it uses less digits than its factorization.

1260564287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6105.

The product of its (nonzero) digits is 161280, while the sum is 41.

The square root of 1260564287 is about 35504.4263015191. The cubic root of 1260564287 is about 1080.2435113342.

The spelling of 1260564287 in words is "one billion, two hundred sixty million, five hundred sixty-four thousand, two hundred eighty-seven".