1518213020 has 24 divisors (see below), whose sum is σ = 3193232784. Its totient is φ = 606335616.

The previous prime is 1518213019. The next prime is 1518213043. The reversal of 1518213020 is 203128151.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46169 + ... + 71888.

It is an arithmetic number, because the mean of its divisors is an integer number (133051366).

Almost surely, 2^1518213020 is an apocalyptic number.

1518213020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1518213020 is an abundant number, since it is smaller than the sum of its proper divisors (1675019764).

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

1518213020 is a wasteful number, since it uses less digits than its factorization.

1518213020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118709 (or 118707 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 23.

The square root of 1518213020 is about 38964.2531046086. The cubic root of 1518213020 is about 1149.3286617277.

The spelling of 1518213020 in words is "one billion, five hundred eighteen million, two hundred thirteen thousand, twenty".