1316570285 has 4 divisors (see below), whose sum is σ = 1579884348. Its totient is φ = 1053256224.

The previous prime is 1316570231. The next prime is 1316570291. The reversal of 1316570285 is 5820756131.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 630863689 + 685706596 = 25117^2 + 26186^2 .

It is a cyclic number.

It is not a de Polignac number, because 1316570285 - 2⁶ = 1316570221 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 131657024 + ... + 131657033.

It is an arithmetic number, because the mean of its divisors is an integer number (394971087).

Almost surely, 2^1316570285 is an apocalyptic number.

It is an amenable number.

1316570285 is a deficient number, since it is larger than the sum of its proper divisors (263314063).

1316570285 is an equidigital number, since it uses as much as digits as its factorization.

1316570285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 263314062.

The product of its (nonzero) digits is 50400, while the sum is 38.

The square root of 1316570285 is about 36284.5736505199. The cubic root of 1316570285 is about 1096.0104196201.

The spelling of 1316570285 in words is "one billion, three hundred sixteen million, five hundred seventy thousand, two hundred eighty-five".