16989141 has 8 divisors (see below), whose sum is σ = 24394720. Its totient is φ = 10454832.

The previous prime is 16989113. The next prime is 16989143. The reversal of 16989141 is 14198961.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 16989141 - 2⁷ = 16989013 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39), and also a Moran number because the ratio is a prime number: 435619 = 16989141 / (1 + 6 + 9 + 8 + 9 + 1 + 4 + 1).

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 16989141.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16989143) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 217771 + ... + 217848.

It is an arithmetic number, because the mean of its divisors is an integer number (3049340).

Almost surely, 2^16989141 is an apocalyptic number.

It is an amenable number.

16989141 is a deficient number, since it is larger than the sum of its proper divisors (7405579).

16989141 is a wasteful number, since it uses less digits than its factorization.

16989141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 435635.

The product of its digits is 15552, while the sum is 39.

The square root of 16989141 is about 4121.7885680855. The cubic root of 16989141 is about 257.0733992737.

The spelling of 16989141 in words is "sixteen million, nine hundred eighty-nine thousand, one hundred forty-one".