492938191 has 2 divisors, whose sum is σ = 492938192. Its totient is φ = 492938190.

The previous prime is 492938183. The next prime is 492938207. The reversal of 492938191 is 191839294.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 492938191 - 2³ = 492938183 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (492938291) 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, 246469095 + 246469096.

It is an arithmetic number, because the mean of its divisors is an integer number (246469096).

Almost surely, 2^492938191 is an apocalyptic number.

492938191 is a deficient number, since it is larger than the sum of its proper divisors (1).

492938191 is an equidigital number, since it uses as much as digits as its factorization.

492938191 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 139968, while the sum is 46.

The square root of 492938191 is about 22202.2113988675. The cubic root of 492938191 is about 789.9461539970.

The spelling of 492938191 in words is "four hundred ninety-two million, nine hundred thirty-eight thousand, one hundred ninety-one".