1317057018 has 16 divisors (see below), whose sum is σ = 2642427360. Its totient is φ = 437633456.

The previous prime is 1317057017. The next prime is 1317057037. The reversal of 1317057018 is 8107507131.

It is a self number, because there is not a number n which added to its sum of digits gives 1317057018.

It is not an unprimeable number, because it can be changed into a prime (1317057013) 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, 344328 + ... + 348131.

It is an arithmetic number, because the mean of its divisors is an integer number (165151710).

Almost surely, 2^1317057018 is an apocalyptic number.

1317057018 is an abundant number, since it is smaller than the sum of its proper divisors (1325370342).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1317057018 is a wasteful number, since it uses less digits than its factorization.

1317057018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 692781.

The product of its (nonzero) digits is 5880, while the sum is 33.

The square root of 1317057018 is about 36291.2801923547. The cubic root of 1317057018 is about 1096.1454671546.

The spelling of 1317057018 in words is "one billion, three hundred seventeen million, fifty-seven thousand, eighteen".