16301309 has 2 divisors, whose sum is σ = 16301310. Its totient is φ = 16301308.

The previous prime is 16301291. The next prime is 16301321. The reversal of 16301309 is 90310361.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15578809 + 722500 = 3947^2 + 850^2 .

It is a cyclic number.

It is not a de Polignac number, because 16301309 - 2²⁰ = 15252733 is a prime.

It is a super-2 number, since 2×16301309² = 531465350226962, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16301399) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8150654 + 8150655.

It is an arithmetic number, because the mean of its divisors is an integer number (8150655).

Almost surely, 2^16301309 is an apocalyptic number.

It is an amenable number.

16301309 is a deficient number, since it is larger than the sum of its proper divisors (1).

16301309 is an equidigital number, since it uses as much as digits as its factorization.

16301309 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 486, while the sum is 23.

The square root of 16301309 is about 4037.4879566384. The cubic root of 16301309 is about 253.5561564866.

The spelling of 16301309 in words is "sixteen million, three hundred one thousand, three hundred nine".