500112191 has 2 divisors, whose sum is σ = 500112192. Its totient is φ = 500112190.

The previous prime is 500112169. The next prime is 500112209. The reversal of 500112191 is 191211005.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 500112191 - 2⁶ = 500112127 is a prime.

It is a super-2 number, since 2×500112191² = 500224407173640962, which contains 22 as substring.

It is a Sophie Germain 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 (500112791) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 250056095 + 250056096.

It is an arithmetic number, because the mean of its divisors is an integer number (250056096).

Almost surely, 2^500112191 is an apocalyptic number.

500112191 is a deficient number, since it is larger than the sum of its proper divisors (1).

500112191 is an equidigital number, since it uses as much as digits as its factorization.

500112191 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 90, while the sum is 20.

The square root of 500112191 is about 22363.1883013134. The cubic root of 500112191 is about 793.7598855817.

Adding to 500112191 its reverse (191211005), we get a palindrome (691323196).

The spelling of 500112191 in words is "five hundred million, one hundred twelve thousand, one hundred ninety-one".