1317497018 has 8 divisors (see below), whose sum is σ = 1976413440. Its totient is φ = 658692540.

The previous prime is 1317497011. The next prime is 1317497021. The reversal of 1317497018 is 8107947131.

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

It is not an unprimeable number, because it can be changed into a prime (1317497011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14093 + ... + 53231.

It is an arithmetic number, because the mean of its divisors is an integer number (247051680).

Almost surely, 2^1317497018 is an apocalyptic number.

1317497018 is a deficient number, since it is larger than the sum of its proper divisors (658916422).

1317497018 is a wasteful number, since it uses less digits than its factorization.

1317497018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55972.

The product of its (nonzero) digits is 42336, while the sum is 41.

The square root of 1317497018 is about 36297.3417483980. The cubic root of 1317497018 is about 1096.2675196549.

The spelling of 1317497018 in words is "one billion, three hundred seventeen million, four hundred ninety-seven thousand, eighteen".