16503199 has 2 divisors, whose sum is σ = 16503200. Its totient is φ = 16503198.

The previous prime is 16503173. The next prime is 16503203. The reversal of 16503199 is 99130561.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 16503199 - 2¹¹ = 16501151 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16503119) 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, 8251599 + 8251600.

It is an arithmetic number, because the mean of its divisors is an integer number (8251600).

Almost surely, 2^16503199 is an apocalyptic number.

16503199 is a deficient number, since it is larger than the sum of its proper divisors (1).

16503199 is an equidigital number, since it uses as much as digits as its factorization.

16503199 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7290, while the sum is 34.

The square root of 16503199 is about 4062.4129529136. The cubic root of 16503199 is about 254.5986201139.

The spelling of 16503199 in words is "sixteen million, five hundred three thousand, one hundred ninety-nine".