16345 has 8 divisors (see below), whose sum is σ = 22464. Its totient is φ = 11184.

The previous prime is 16339. The next prime is 16349. The reversal of 16345 is 54361.

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 16345 - 2⁷ = 16217 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a nialpdrome in base 7.

It is not an unprimeable number, because it can be changed into a prime (16349) 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, 199 + ... + 268.

It is an arithmetic number, because the mean of its divisors is an integer number (2808).

2¹⁶³⁴⁵ is an apocalyptic number.

It is an amenable number.

16345 is a deficient number, since it is larger than the sum of its proper divisors (6119).

16345 is an equidigital number, since it uses as much as digits as its factorization.

16345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 479.

The product of its digits is 360, while the sum is 19.

The square root of 16345 is about 127.8475654833. The cubic root of 16345 is about 25.3782482677.

It can be divided in two parts, 16 and 345, that added together give a square (361 = 19²).

The spelling of 16345 in words is "sixteen thousand, three hundred forty-five".