1317148707085 has 8 divisors (see below), whose sum is σ = 1623296785176. Its totient is φ = 1025240074560.

The previous prime is 1317148707071. The next prime is 1317148707089. The reversal of 1317148707085 is 5807078417131.

It can be written as a sum of positive squares in 4 ways, for example, as 417266905444 + 899881801641 = 645962^2 + 948621^2 .

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

It is a de Polignac number, because none of the positive numbers 2^k-1317148707085 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 (1317148707089) 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, 3559861186 + ... + 3559861555.

It is an arithmetic number, because the mean of its divisors is an integer number (202912098147).

Almost surely, 2^{1317148707085} is an apocalyptic number.

It is an amenable number.

1317148707085 is a deficient number, since it is larger than the sum of its proper divisors (306148078091).

1317148707085 is an equidigital number, since it uses as much as digits as its factorization.

1317148707085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7119722783.

The product of its (nonzero) digits is 1317120, while the sum is 52.

The spelling of 1317148707085 in words is "one trillion, three hundred seventeen billion, one hundred forty-eight million, seven hundred seven thousand, eighty-five".