16349173 has 4 divisors (see below), whose sum is σ = 16511148. Its totient is φ = 16187200.

The previous prime is 16349167. The next prime is 16349197. The reversal of 16349173 is 37194361.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 9284209 + 7064964 = 3047^2 + 2658^2 .

It is a cyclic number.

It is not a de Polignac number, because 16349173 - 2⁵ = 16349141 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16349143) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 80836 + ... + 81037.

It is an arithmetic number, because the mean of its divisors is an integer number (4127787).

Almost surely, 2^16349173 is an apocalyptic number.

It is an amenable number.

16349173 is a deficient number, since it is larger than the sum of its proper divisors (161975).

16349173 is a wasteful number, since it uses less digits than its factorization.

16349173 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161974.

The product of its digits is 13608, while the sum is 34.

The square root of 16349173 is about 4043.4110599839. The cubic root of 16349173 is about 253.8040783575.

The spelling of 16349173 in words is "sixteen million, three hundred forty-nine thousand, one hundred seventy-three".