16861119 has 8 divisors (see below), whose sum is σ = 24525312. Its totient is φ = 10218840.

The previous prime is 16861111. The next prime is 16861129. The reversal of 16861119 is 91116861.

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

It is not a de Polignac number, because 16861119 - 2³ = 16861111 is a prime.

It is a super-2 number, since 2×16861119² = 568594667864322, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33), and also a Moran number because the ratio is a prime number: 510943 = 16861119 / (1 + 6 + 8 + 6 + 1 + 1 + 1 + 9).

It is a self number, because there is not a number n which added to its sum of digits gives 16861119.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16861111) 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, 255439 + ... + 255504.

It is an arithmetic number, because the mean of its divisors is an integer number (3065664).

Almost surely, 2^16861119 is an apocalyptic number.

16861119 is a deficient number, since it is larger than the sum of its proper divisors (7664193).

16861119 is a wasteful number, since it uses less digits than its factorization.

16861119 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 510957.

The product of its digits is 2592, while the sum is 33.

The square root of 16861119 is about 4106.2292921852. The cubic root of 16861119 is about 256.4260432982.

The spelling of 16861119 in words is "sixteen million, eight hundred sixty-one thousand, one hundred nineteen".