16544039 has 2 divisors, whose sum is σ = 16544040. Its totient is φ = 16544038.

The previous prime is 16544023. The next prime is 16544071. The reversal of 16544039 is 93044561.

It is an a-pointer prime, because the next prime (16544071) can be obtained adding 16544039 to its sum of digits (32).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 16544039 - 2⁴ = 16544023 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 16543996 and 16544014.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16544089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8272019 + 8272020.

It is an arithmetic number, because the mean of its divisors is an integer number (8272020).

Almost surely, 2^16544039 is an apocalyptic number.

16544039 is a deficient number, since it is larger than the sum of its proper divisors (1).

16544039 is an equidigital number, since it uses as much as digits as its factorization.

16544039 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12960, while the sum is 32.

The square root of 16544039 is about 4067.4364162209. The cubic root of 16544039 is about 254.8084631139.

The spelling of 16544039 in words is "sixteen million, five hundred forty-four thousand, thirty-nine".