492135289 has 2 divisors, whose sum is σ = 492135290. Its totient is φ = 492135288.

The previous prime is 492135247. The next prime is 492135311. The reversal of 492135289 is 982531294.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 326163600 + 165971689 = 18060^2 + 12883^2 .

It is a cyclic number.

It is not a de Polignac number, because 492135289 - 2¹¹ = 492133241 is a prime.

It is a super-2 number, since 2×492135289² = 484394285358227042, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (492135239) 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, 246067644 + 246067645.

It is an arithmetic number, because the mean of its divisors is an integer number (246067645).

Almost surely, 2^492135289 is an apocalyptic number.

It is an amenable number.

492135289 is a deficient number, since it is larger than the sum of its proper divisors (1).

492135289 is an equidigital number, since it uses as much as digits as its factorization.

492135289 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 155520, while the sum is 43.

The square root of 492135289 is about 22184.1224527814. The cubic root of 492135289 is about 789.5170305441.

The spelling of 492135289 in words is "four hundred ninety-two million, one hundred thirty-five thousand, two hundred eighty-nine".