15996173 has 8 divisors (see below), whose sum is σ = 16601592. Its totient is φ = 15399936.

The previous prime is 15996161. The next prime is 15996199. The reversal of 15996173 is 37169951.

It can be written as a sum of positive squares in 4 ways, for example, as 6620329 + 9375844 = 2573^2 + 3062^2 .

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 15996173 - 2¹⁰ = 15995149 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 15996173.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15996103) 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 7 ways as a sum of consecutive naturals, for example, 1361 + ... + 5817.

It is an arithmetic number, because the mean of its divisors is an integer number (2075199).

Almost surely, 2^15996173 is an apocalyptic number.

It is an amenable number.

15996173 is a deficient number, since it is larger than the sum of its proper divisors (605419).

15996173 is an equidigital number, since it uses as much as digits as its factorization.

15996173 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4591.

The product of its digits is 51030, while the sum is 41.

The square root of 15996173 is about 3999.5215963912. The cubic root of 15996173 is about 251.9641178859.

Subtracting 15996173 from its reverse (37169951), we obtain a triangular number (21173778 = T₆₅₀₇).

The spelling of 15996173 in words is "fifteen million, nine hundred ninety-six thousand, one hundred seventy-three".