16171291 has 8 divisors (see below), whose sum is σ = 16400384. Its totient is φ = 15944040.

The previous prime is 16171289. The next prime is 16171297. The reversal of 16171291 is 19217161.

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 16171291 - 2¹ = 16171289 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16171297) 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, 28036 + ... + 28606.

It is an arithmetic number, because the mean of its divisors is an integer number (2050048).

Almost surely, 2^16171291 is an apocalyptic number.

16171291 is a deficient number, since it is larger than the sum of its proper divisors (229093).

16171291 is a wasteful number, since it uses less digits than its factorization.

16171291 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 921.

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

The square root of 16171291 is about 4021.3543738397. The cubic root of 16171291 is about 252.8802414038.

The spelling of 16171291 in words is "sixteen million, one hundred seventy-one thousand, two hundred ninety-one".