1358570985 has 8 divisors (see below), whose sum is σ = 2173713600. Its totient is φ = 724571184.

The previous prime is 1358570981. The next prime is 1358570987. The reversal of 1358570985 is 5890758531.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1358570985 - 2² = 1358570981 is a prime.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (1358570981) 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, 45285685 + ... + 45285714.

It is an arithmetic number, because the mean of its divisors is an integer number (271714200).

Almost surely, 2^1358570985 is an apocalyptic number.

1358570985 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1358570985 is a deficient number, since it is larger than the sum of its proper divisors (815142615).

1358570985 is an equidigital number, since it uses as much as digits as its factorization.

1358570985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90571407.

The product of its (nonzero) digits is 1512000, while the sum is 51.

The square root of 1358570985 is about 36858.7979321084. The cubic root of 1358570985 is about 1107.5434636537.

The spelling of 1358570985 in words is "one billion, three hundred fifty-eight million, five hundred seventy thousand, nine hundred eighty-five".