16173073 has 4 divisors (see below), whose sum is σ = 18483520. Its totient is φ = 13862628.

The previous prime is 16173061. The next prime is 16173127. The reversal of 16173073 is 37037161.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 37037161 = 7 ⋅5291023.

It is a cyclic number.

It is not a de Polignac number, because 16173073 - 2¹⁷ = 16042001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16173013) 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, 1155213 + ... + 1155226.

It is an arithmetic number, because the mean of its divisors is an integer number (4620880).

Almost surely, 2^16173073 is an apocalyptic number.

It is an amenable number.

16173073 is a deficient number, since it is larger than the sum of its proper divisors (2310447).

16173073 is an equidigital number, since it uses as much as digits as its factorization.

16173073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2310446.

The product of its (nonzero) digits is 2646, while the sum is 28.

The square root of 16173073 is about 4021.5759348793. The cubic root of 16173073 is about 252.8895297993.

The spelling of 16173073 in words is "sixteen million, one hundred seventy-three thousand, seventy-three".