16744081 has 2 divisors, whose sum is σ = 16744082. Its totient is φ = 16744080.

The previous prime is 16744067. The next prime is 16744097. The reversal of 16744081 is 18044761.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16679056 + 65025 = 4084^2 + 255^2 .

It is a cyclic number.

It is not a de Polignac number, because 16744081 - 2⁹ = 16743569 is a prime.

It is a super-2 number, since 2×16744081² = 560728497069122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (16744181) 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, 8372040 + 8372041.

It is an arithmetic number, because the mean of its divisors is an integer number (8372041).

Almost surely, 2^16744081 is an apocalyptic number.

It is an amenable number.

16744081 is a deficient number, since it is larger than the sum of its proper divisors (1).

16744081 is an equidigital number, since it uses as much as digits as its factorization.

16744081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5376, while the sum is 31.

The square root of 16744081 is about 4091.9532011009. The cubic root of 16744081 is about 255.8313556018.

The spelling of 16744081 in words is "sixteen million, seven hundred forty-four thousand, eighty-one".