16003441 has 2 divisors, whose sum is σ = 16003442. Its totient is φ = 16003440.

The previous prime is 16003391. The next prime is 16003457. The reversal of 16003441 is 14430061.

It is a happy number.

16003441 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13690000 + 2313441 = 3700^2 + 1521^2 .

It is a cyclic number.

It is not a de Polignac number, because 16003441 - 2⁹ = 16002929 is a prime.

It is a super-2 number, since 2×16003441² = 512220247680962, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (16003541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8001720 + 8001721.

It is an arithmetic number, because the mean of its divisors is an integer number (8001721).

Almost surely, 2^16003441 is an apocalyptic number.

It is an amenable number.

16003441 is a deficient number, since it is larger than the sum of its proper divisors (1).

16003441 is an equidigital number, since it uses as much as digits as its factorization.

16003441 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 16003441 is about 4000.4301018765. The cubic root of 16003441 is about 252.0022728022.

It can be divided in two parts, 1600 and 3441, that added together give a square (5041 = 71²).

The spelling of 16003441 in words is "sixteen million, three thousand, four hundred forty-one".