1218019116 has 12 divisors (see below), whose sum is σ = 2842044632. Its totient is φ = 406006368.

The previous prime is 1218019093. The next prime is 1218019139. The reversal of 1218019116 is 6119108121.

It is a happy number.

1218019116 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (1218019093) and next prime (1218019139).

It is a tau number, because it is divible by the number of its divisors (12).

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50750785 + ... + 50750808.

Almost surely, 2^1218019116 is an apocalyptic number.

It is an amenable number.

1218019116 is an abundant number, since it is smaller than the sum of its proper divisors (1624025516).

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

1218019116 is a wasteful number, since it uses less digits than its factorization.

1218019116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101501600 (or 101501598 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 30.

The square root of 1218019116 is about 34900.1306014748. The cubic root of 1218019116 is about 1067.9511017184.

The spelling of 1218019116 in words is "one billion, two hundred eighteen million, nineteen thousand, one hundred sixteen".