16053321 has 8 divisors (see below), whose sum is σ = 22663584. Its totient is φ = 10072640.

The previous prime is 16053307. The next prime is 16053341. The reversal of 16053321 is 12335061.

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 16053321 - 2¹³ = 16045129 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16053341) 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 7 ways as a sum of consecutive naturals, for example, 157335 + ... + 157436.

It is an arithmetic number, because the mean of its divisors is an integer number (2832948).

Almost surely, 2^16053321 is an apocalyptic number.

It is an amenable number.

16053321 is a deficient number, since it is larger than the sum of its proper divisors (6610263).

16053321 is a wasteful number, since it uses less digits than its factorization.

16053321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 314791.

The product of its (nonzero) digits is 540, while the sum is 21.

The square root of 16053321 is about 4006.6595812472. The cubic root of 16053321 is about 252.2638173152.

Adding to 16053321 its reverse (12335061), we get a palindrome (28388382).

The spelling of 16053321 in words is "sixteen million, fifty-three thousand, three hundred twenty-one".