16351 has 4 divisors (see below), whose sum is σ = 16632. Its totient is φ = 16072.

The previous prime is 16349. The next prime is 16361. The reversal of 16351 is 15361.

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

It is a cyclic number.

It is not a de Polignac number, because 16351 - 2¹ = 16349 is a prime.

It is a Duffinian number.

16351 is an undulating number in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16301) 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, 16 + ... + 181.

It is an arithmetic number, because the mean of its divisors is an integer number (4158).

2¹⁶³⁵¹ is an apocalyptic number.

16351 is a deficient number, since it is larger than the sum of its proper divisors (281).

16351 is an equidigital number, since it uses as much as digits as its factorization.

16351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 280.

The product of its digits is 90, while the sum is 16.

The square root of 16351 is about 127.8710287751. The cubic root of 16351 is about 25.3813532103.

Subtracting from 16351 its product of digits (90), we obtain a palindrome (16261).

Subtracting from 16351 its reverse (15361), we obtain a triangular number (990 = T₄₄).

The spelling of 16351 in words is "sixteen thousand, three hundred fifty-one".