531285127 has 2 divisors, whose sum is σ = 531285128. Its totient is φ = 531285126.

The previous prime is 531285059. The next prime is 531285151. The reversal of 531285127 is 721582135.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 531285127 - 2¹¹ = 531283079 is a prime.

It is a super-2 number, since 2×531285127² = 564527772342812258, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 531285092 and 531285101.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (531285527) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 265642563 + 265642564.

It is an arithmetic number, because the mean of its divisors is an integer number (265642564).

Almost surely, 2^531285127 is an apocalyptic number.

531285127 is a deficient number, since it is larger than the sum of its proper divisors (1).

531285127 is an equidigital number, since it uses as much as digits as its factorization.

531285127 is an evil number, because the sum of its binary digits is even.

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

The square root of 531285127 is about 23049.6231422555. The cubic root of 531285127 is about 809.9208005681.

The spelling of 531285127 in words is "five hundred thirty-one million, two hundred eighty-five thousand, one hundred twenty-seven".