16219117 has 8 divisors (see below), whose sum is σ = 16986816. Its totient is φ = 15456672.

The previous prime is 16219111. The next prime is 16219121. The reversal of 16219117 is 71191261.

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

It is a cyclic number.

It is not a de Polignac number, because 16219117 - 2³ = 16219109 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16219111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5913 + ... + 8209.

It is an arithmetic number, because the mean of its divisors is an integer number (2123352).

Almost surely, 2^16219117 is an apocalyptic number.

It is an amenable number.

16219117 is a deficient number, since it is larger than the sum of its proper divisors (767699).

16219117 is a wasteful number, since it uses less digits than its factorization.

16219117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2627.

The product of its digits is 756, while the sum is 28.

The square root of 16219117 is about 4027.2964877198. The cubic root of 16219117 is about 253.1292907264.

The spelling of 16219117 in words is "sixteen million, two hundred nineteen thousand, one hundred seventeen".