16544453 has 2 divisors, whose sum is σ = 16544454. Its totient is φ = 16544452.

The previous prime is 16544431. The next prime is 16544461. The reversal of 16544453 is 35444561.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15499969 + 1044484 = 3937^2 + 1022^2 .

It is an emirp because it is prime and its reverse (35444561) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 16544453 - 2⁶ = 16544389 is a prime.

It is a Chen prime.

It is equal to p_1063859 and since 16544453 and 1063859 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16544653) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8272226 + 8272227.

It is an arithmetic number, because the mean of its divisors is an integer number (8272227).

Almost surely, 2^16544453 is an apocalyptic number.

It is an amenable number.

16544453 is a deficient number, since it is larger than the sum of its proper divisors (1).

16544453 is an equidigital number, since it uses as much as digits as its factorization.

16544453 is an evil number, because the sum of its binary digits is even.

The product of its digits is 28800, while the sum is 32.

The square root of 16544453 is about 4067.4873079089. The cubic root of 16544453 is about 254.8105885486.

The spelling of 16544453 in words is "sixteen million, five hundred forty-four thousand, four hundred fifty-three".