120015018 has 24 divisors (see below), whose sum is σ = 260255268. Its totient is φ = 39970752.

The previous prime is 120014969. The next prime is 120015031. The reversal of 120015018 is 810510021.

It can be written as a sum of positive squares in 2 ways, for example, as 89245809 + 30769209 = 9447^2 + 5547^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 27430 + ... + 31502.

Almost surely, 2^120015018 is an apocalyptic number.

120015018 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

120015018 is an abundant number, since it is smaller than the sum of its proper divisors (140240250).

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

120015018 is a wasteful number, since it uses less digits than its factorization.

120015018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5718 (or 5715 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 18.

The square root of 120015018 is about 10955.1366034386. The cubic root of 120015018 is about 493.2629904372.

Adding to 120015018 its reverse (810510021), we get a palindrome (930525039).

The spelling of 120015018 in words is "one hundred twenty million, fifteen thousand, eighteen".