516603149 has 2 divisors, whose sum is σ = 516603150. Its totient is φ = 516603148.

The previous prime is 516603119. The next prime is 516603209. The reversal of 516603149 is 941306615.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 411684100 + 104919049 = 20290^2 + 10243^2 .

It is a cyclic number.

It is not a de Polignac number, because 516603149 - 2⁸ = 516602893 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (516603119) 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, 258301574 + 258301575.

It is an arithmetic number, because the mean of its divisors is an integer number (258301575).

Almost surely, 2^516603149 is an apocalyptic number.

It is an amenable number.

516603149 is a deficient number, since it is larger than the sum of its proper divisors (1).

516603149 is an equidigital number, since it uses as much as digits as its factorization.

516603149 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 19440, while the sum is 35.

The square root of 516603149 is about 22728.9055829796. The cubic root of 516603149 is about 802.3903242616.

The spelling of 516603149 in words is "five hundred sixteen million, six hundred three thousand, one hundred forty-nine".