16082321 has 2 divisors, whose sum is σ = 16082322. Its totient is φ = 16082320.

The previous prime is 16082299. The next prime is 16082333. The reversal of 16082321 is 12328061.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11937025 + 4145296 = 3455^2 + 2036^2 .

It is a cyclic number.

It is not a de Polignac number, because 16082321 - 2⁶ = 16082257 is a prime.

It is not a weakly prime, because it can be changed into another prime (16082351) 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 as a sum of consecutive naturals, namely, 8041160 + 8041161.

It is an arithmetic number, because the mean of its divisors is an integer number (8041161).

Almost surely, 2^16082321 is an apocalyptic number.

It is an amenable number.

16082321 is a deficient number, since it is larger than the sum of its proper divisors (1).

16082321 is an equidigital number, since it uses as much as digits as its factorization.

16082321 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576, while the sum is 23.

The square root of 16082321 is about 4010.2769231064. The cubic root of 16082321 is about 252.4156290998.

The spelling of 16082321 in words is "sixteen million, eighty-two thousand, three hundred twenty-one".