531456971 has 2 divisors, whose sum is σ = 531456972. Its totient is φ = 531456970.

The previous prime is 531456881. The next prime is 531456973. The reversal of 531456971 is 179654135.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 531456971 - 2²⁶ = 464348107 is a prime.

Together with 531456973, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (531456973) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 265728485 + 265728486.

It is an arithmetic number, because the mean of its divisors is an integer number (265728486).

Almost surely, 2^531456971 is an apocalyptic number.

531456971 is a deficient number, since it is larger than the sum of its proper divisors (1).

531456971 is an equidigital number, since it uses as much as digits as its factorization.

531456971 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 113400, while the sum is 41.

The square root of 531456971 is about 23053.3505373948. The cubic root of 531456971 is about 810.0081140273.

The spelling of 531456971 in words is "five hundred thirty-one million, four hundred fifty-six thousand, nine hundred seventy-one".