531431059 has 2 divisors, whose sum is σ = 531431060. Its totient is φ = 531431058.

The previous prime is 531430981. The next prime is 531431063. The reversal of 531431059 is 950134135.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 531431059 - 2⁹ = 531430547 is a prime.

It is a super-2 number, since 2×531431059² = 564837940939722962, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 531431059.

It is not a weakly prime, because it can be changed into another prime (531431099) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 265715529 + 265715530.

It is an arithmetic number, because the mean of its divisors is an integer number (265715530).

Almost surely, 2^531431059 is an apocalyptic number.

531431059 is a deficient number, since it is larger than the sum of its proper divisors (1).

531431059 is an equidigital number, since it uses as much as digits as its factorization.

531431059 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8100, while the sum is 31.

The square root of 531431059 is about 23052.7885298070. The cubic root of 531431059 is about 809.9949494173.

The spelling of 531431059 in words is "five hundred thirty-one million, four hundred thirty-one thousand, fifty-nine".