16729161 has 8 divisors (see below), whose sum is σ = 22430880. Its totient is φ = 11090112.

The previous prime is 16729147. The next prime is 16729187. The reversal of 16729161 is 16192761.

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

It is not a de Polignac number, because 16729161 - 2⁷ = 16729033 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a nialpdrome in base 8.

It is not an unprimeable number, because it can be changed into a prime (16729061) 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, 15040 + ... + 16113.

It is an arithmetic number, because the mean of its divisors is an integer number (2803860).

Almost surely, 2^16729161 is an apocalyptic number.

It is an amenable number.

16729161 is a deficient number, since it is larger than the sum of its proper divisors (5701719).

16729161 is a wasteful number, since it uses less digits than its factorization.

16729161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31335.

The product of its digits is 4536, while the sum is 33.

The square root of 16729161 is about 4090.1297045448. The cubic root of 16729161 is about 255.7553458940.

The spelling of 16729161 in words is "sixteen million, seven hundred twenty-nine thousand, one hundred sixty-one".