16603241 has 2 divisors, whose sum is σ = 16603242. Its totient is φ = 16603240.

The previous prime is 16603229. The next prime is 16603243. The reversal of 16603241 is 14230661.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8880400 + 7722841 = 2980^2 + 2779^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16603241 is a prime.

It is a super-2 number, since 2×16603241² = 551335223408162, which contains 22 as substring.

Together with 16603243, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (16603243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8301620 + 8301621.

It is an arithmetic number, because the mean of its divisors is an integer number (8301621).

Almost surely, 2^16603241 is an apocalyptic number.

It is an amenable number.

16603241 is a deficient number, since it is larger than the sum of its proper divisors (1).

16603241 is an equidigital number, since it uses as much as digits as its factorization.

16603241 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 16603241 is about 4074.7074741630. The cubic root of 16603241 is about 255.1120409863.

The spelling of 16603241 in words is "sixteen million, six hundred three thousand, two hundred forty-one".