498135709 has 2 divisors, whose sum is σ = 498135710. Its totient is φ = 498135708.

The previous prime is 498135667. The next prime is 498135713. The reversal of 498135709 is 907531894.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 492706809 + 5428900 = 22197^2 + 2330^2 .

It is a cyclic number.

It is not a de Polignac number, because 498135709 - 2¹¹ = 498133661 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (498135719) 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, 249067854 + 249067855.

It is an arithmetic number, because the mean of its divisors is an integer number (249067855).

Almost surely, 2^498135709 is an apocalyptic number.

It is an amenable number.

498135709 is a deficient number, since it is larger than the sum of its proper divisors (1).

498135709 is an equidigital number, since it uses as much as digits as its factorization.

498135709 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 272160, while the sum is 46.

The square root of 498135709 is about 22318.9540301511. The cubic root of 498135709 is about 792.7128382420.

The spelling of 498135709 in words is "four hundred ninety-eight million, one hundred thirty-five thousand, seven hundred nine".