531216199 has 2 divisors, whose sum is σ = 531216200. Its totient is φ = 531216198.

The previous prime is 531216167. The next prime is 531216209. The reversal of 531216199 is 991612135.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 531216199 - 2⁵ = 531216167 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 (531216139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 265608099 + 265608100.

It is an arithmetic number, because the mean of its divisors is an integer number (265608100).

Almost surely, 2^531216199 is an apocalyptic number.

531216199 is a deficient number, since it is larger than the sum of its proper divisors (1).

531216199 is an equidigital number, since it uses as much as digits as its factorization.

531216199 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 14580, while the sum is 37.

The square root of 531216199 is about 23048.1278849281. The cubic root of 531216199 is about 809.8857731522.

The spelling of 531216199 in words is "five hundred thirty-one million, two hundred sixteen thousand, one hundred ninety-nine".