505134199 has 2 divisors, whose sum is σ = 505134200. Its totient is φ = 505134198.

The previous prime is 505134187. The next prime is 505134221. The reversal of 505134199 is 991431505.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 505134199 - 2¹⁷ = 505003127 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (505134139) 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, 252567099 + 252567100.

It is an arithmetic number, because the mean of its divisors is an integer number (252567100).

Almost surely, 2^505134199 is an apocalyptic number.

505134199 is a deficient number, since it is larger than the sum of its proper divisors (1).

505134199 is an equidigital number, since it uses as much as digits as its factorization.

505134199 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24300, while the sum is 37.

The square root of 505134199 is about 22475.1907444631. The cubic root of 505134199 is about 796.4079576581.

The spelling of 505134199 in words is "five hundred five million, one hundred thirty-four thousand, one hundred ninety-nine".