16045321 has 8 divisors (see below), whose sum is σ = 16949504. Its totient is φ = 15165360.

The previous prime is 16045313. The next prime is 16045339. The reversal of 16045321 is 12354061.

16045321 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 16045321 - 2³ = 16045313 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 16045292 and 16045301.

It is not an unprimeable number, because it can be changed into a prime (16045121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4686 + ... + 7351.

It is an arithmetic number, because the mean of its divisors is an integer number (2118688).

Almost surely, 2^16045321 is an apocalyptic number.

It is an amenable number.

16045321 is a deficient number, since it is larger than the sum of its proper divisors (904183).

16045321 is a wasteful number, since it uses less digits than its factorization.

16045321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12111.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 16045321 is about 4005.6611189665. The cubic root of 16045321 is about 252.2219060317.

Adding to 16045321 its reverse (12354061), we get a palindrome (28399382).

It can be divided in two parts, 16045 and 321, that multiplied together give a triangular number (5150445 = T₃₂₀₉).

The spelling of 16045321 in words is "sixteen million, forty-five thousand, three hundred twenty-one".