531054871 has 2 divisors, whose sum is σ = 531054872. Its totient is φ = 531054870.

The previous prime is 531054863. The next prime is 531054899. The reversal of 531054871 is 178450135.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 531054871 - 2³ = 531054863 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (531054841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 265527435 + 265527436.

It is an arithmetic number, because the mean of its divisors is an integer number (265527436).

Almost surely, 2^531054871 is an apocalyptic number.

531054871 is a deficient number, since it is larger than the sum of its proper divisors (1).

531054871 is an equidigital number, since it uses as much as digits as its factorization.

531054871 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16800, while the sum is 34.

The square root of 531054871 is about 23044.6278121388. The cubic root of 531054871 is about 809.8037786139.

The spelling of 531054871 in words is "five hundred thirty-one million, fifty-four thousand, eight hundred seventy-one".