16321059 has 12 divisors (see below), whose sum is σ = 23680800. Its totient is φ = 10831824.

The previous prime is 16321049. The next prime is 16321093. The reversal of 16321059 is 95012361.

It is not a de Polignac number, because 16321059 - 2⁸ = 16320803 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16321009) 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 11 ways as a sum of consecutive naturals, for example, 1899 + ... + 6020.

It is an arithmetic number, because the mean of its divisors is an integer number (1973400).

Almost surely, 2^16321059 is an apocalyptic number.

16321059 is a deficient number, since it is larger than the sum of its proper divisors (7359741).

16321059 is a wasteful number, since it uses less digits than its factorization.

16321059 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8154 (or 8151 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 27.

The square root of 16321059 is about 4039.9330439996. The cubic root of 16321059 is about 253.6585145869.

The spelling of 16321059 in words is "sixteen million, three hundred twenty-one thousand, fifty-nine".