497871281 has 2 divisors, whose sum is σ = 497871282. Its totient is φ = 497871280.

The previous prime is 497871263. The next prime is 497871373. The reversal of 497871281 is 182178794.

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., 427042225 + 70829056 = 20665^2 + 8416^2 .

It is a cyclic number.

It is not a de Polignac number, because 497871281 - 2¹⁴ = 497854897 is a prime.

It is a super-2 number, since 2×497871281² = 495751624889161922, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (497871211) 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, 248935640 + 248935641.

It is an arithmetic number, because the mean of its divisors is an integer number (248935641).

Almost surely, 2^497871281 is an apocalyptic number.

It is an amenable number.

497871281 is a deficient number, since it is larger than the sum of its proper divisors (1).

497871281 is an equidigital number, since it uses as much as digits as its factorization.

497871281 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 225792, while the sum is 47.

The square root of 497871281 is about 22313.0293998820. The cubic root of 497871281 is about 792.5725467726.

The spelling of 497871281 in words is "four hundred ninety-seven million, eight hundred seventy-one thousand, two hundred eighty-one".