498571081 has 2 divisors, whose sum is σ = 498571082. Its totient is φ = 498571080.

The previous prime is 498571079. The next prime is 498571097. The reversal of 498571081 is 180175894.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 486599481 + 11971600 = 22059^2 + 3460^2 .

It is a cyclic number.

It is not a de Polignac number, because 498571081 - 2¹ = 498571079 is a prime.

It is a super-2 number, since 2×498571081² = 497146245619017122, which contains 22 as substring.

Together with 498571079, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (498574081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 249285540 + 249285541.

It is an arithmetic number, because the mean of its divisors is an integer number (249285541).

Almost surely, 2^498571081 is an apocalyptic number.

It is an amenable number.

498571081 is a deficient number, since it is larger than the sum of its proper divisors (1).

498571081 is an equidigital number, since it uses as much as digits as its factorization.

498571081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 80640, while the sum is 43.

The square root of 498571081 is about 22328.7053140123. The cubic root of 498571081 is about 792.9437154037.

The spelling of 498571081 in words is "four hundred ninety-eight million, five hundred seventy-one thousand, eighty-one".