16143020 has 12 divisors (see below), whose sum is σ = 33900384. Its totient is φ = 6457200.

The previous prime is 16143019. The next prime is 16143041. The reversal of 16143020 is 2034161.

It is a self number, because there is not a number n which added to its sum of digits gives 16143020.

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 3 ways as a sum of consecutive naturals, for example, 403556 + ... + 403595.

It is an arithmetic number, because the mean of its divisors is an integer number (2825032).

Almost surely, 2^16143020 is an apocalyptic number.

16143020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16143020 is an abundant number, since it is smaller than the sum of its proper divisors (17757364).

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

16143020 is a wasteful number, since it uses less digits than its factorization.

16143020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 807160 (or 807158 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 16143020 is about 4017.8377269372. The cubic root of 16143020 is about 252.7327918800.

Adding to 16143020 its reverse (2034161), we get a palindrome (18177181).

The spelling of 16143020 in words is "sixteen million, one hundred forty-three thousand, twenty".