16005172 has 12 divisors (see below), whose sum is σ = 28151200. Its totient is φ = 7961976.

The previous prime is 16005169. The next prime is 16005173. The reversal of 16005172 is 27150061.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16005173) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9258 + ... + 10849.

Almost surely, 2^16005172 is an apocalyptic number.

It is an amenable number.

16005172 is a deficient number, since it is larger than the sum of its proper divisors (12146028).

16005172 is a wasteful number, since it uses less digits than its factorization.

16005172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20310 (or 20308 counting only the distinct ones).

The product of its (nonzero) digits is 420, while the sum is 22.

The square root of 16005172 is about 4000.6464477632. The cubic root of 16005172 is about 252.0113583526.

The spelling of 16005172 in words is "sixteen million, five thousand, one hundred seventy-two".