16671313 has 4 divisors (see below), whose sum is σ = 16683520. Its totient is φ = 16659108.

The previous prime is 16671311. The next prime is 16671329. The reversal of 16671313 is 31317661.

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: 31317661 = 179 ⋅174959.

It is a cyclic number.

It is not a de Polignac number, because 16671313 - 2¹ = 16671311 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16671311) 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 3 ways as a sum of consecutive naturals, for example, 3753 + ... + 6886.

It is an arithmetic number, because the mean of its divisors is an integer number (4170880).

Almost surely, 2^16671313 is an apocalyptic number.

It is an amenable number.

16671313 is a deficient number, since it is larger than the sum of its proper divisors (12207).

16671313 is a wasteful number, since it uses less digits than its factorization.

16671313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12206.

The product of its digits is 2268, while the sum is 28.

The square root of 16671313 is about 4083.0519222758. The cubic root of 16671313 is about 255.4602121195.

Adding to 16671313 its reverse (31317661), we get a palindrome (47988974).

The spelling of 16671313 in words is "sixteen million, six hundred seventy-one thousand, three hundred thirteen".