16654453 has 2 divisors, whose sum is σ = 16654454. Its totient is φ = 16654452.

The previous prime is 16654447. The next prime is 16654457. The reversal of 16654453 is 35445661.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14799409 + 1855044 = 3847^2 + 1362^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16654453 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16654457) 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, 8327226 + 8327227.

It is an arithmetic number, because the mean of its divisors is an integer number (8327227).

Almost surely, 2^16654453 is an apocalyptic number.

It is an amenable number.

16654453 is a deficient number, since it is larger than the sum of its proper divisors (1).

16654453 is an equidigital number, since it uses as much as digits as its factorization.

16654453 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 43200, while the sum is 34.

The square root of 16654453 is about 4080.9867679276. The cubic root of 16654453 is about 255.3740658967.

The spelling of 16654453 in words is "sixteen million, six hundred fifty-four thousand, four hundred fifty-three".