492131669 has 2 divisors, whose sum is σ = 492131670. Its totient is φ = 492131668.

The previous prime is 492131639. The next prime is 492131671. The reversal of 492131669 is 966131294.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 343657444 + 148474225 = 18538^2 + 12185^2 .

It is a cyclic number.

It is not a de Polignac number, because 492131669 - 2²⁰ = 491083093 is a prime.

It is a super-2 number, since 2×492131669² = 484387159265451122, which contains 22 as substring.

Together with 492131671, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (492131639) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 246065834 + 246065835.

It is an arithmetic number, because the mean of its divisors is an integer number (246065835).

Almost surely, 2^492131669 is an apocalyptic number.

It is an amenable number.

492131669 is a deficient number, since it is larger than the sum of its proper divisors (1).

492131669 is an equidigital number, since it uses as much as digits as its factorization.

492131669 is an evil number, because the sum of its binary digits is even.

The product of its digits is 69984, while the sum is 41.

The square root of 492131669 is about 22184.0408627464. The cubic root of 492131669 is about 789.5150947223.

The spelling of 492131669 in words is "four hundred ninety-two million, one hundred thirty-one thousand, six hundred sixty-nine".