1218046017 has 16 divisors (see below), whose sum is σ = 1677616640. Its totient is φ = 785289600.

The previous prime is 1218046013. The next prime is 1218046021. The reversal of 1218046017 is 7106408121.

It is an interprime number because it is at equal distance from previous prime (1218046013) and next prime (1218046021).

It is not a de Polignac number, because 1218046017 - 2² = 1218046013 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1218046013) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 162717 + ... + 170037.

It is an arithmetic number, because the mean of its divisors is an integer number (104851040).

Almost surely, 2^1218046017 is an apocalyptic number.

It is an amenable number.

1218046017 is a deficient number, since it is larger than the sum of its proper divisors (459570623).

1218046017 is a wasteful number, since it uses less digits than its factorization.

1218046017 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9144.

The product of its (nonzero) digits is 2688, while the sum is 30.

The square root of 1218046017 is about 34900.5159990508. The cubic root of 1218046017 is about 1067.9589638668.

The spelling of 1218046017 in words is "one billion, two hundred eighteen million, forty-six thousand, seventeen".