531531079 has 2 divisors, whose sum is σ = 531531080. Its totient is φ = 531531078.

The previous prime is 531531029. The next prime is 531531113. The reversal of 531531079 is 970135135.

It is an a-pointer prime, because the next prime (531531113) can be obtained adding 531531079 to its sum of digits (34).

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 531531079 - 2²³ = 523142471 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (531531029) 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, 265765539 + 265765540.

It is an arithmetic number, because the mean of its divisors is an integer number (265765540).

Almost surely, 2^531531079 is an apocalyptic number.

531531079 is a deficient number, since it is larger than the sum of its proper divisors (1).

531531079 is an equidigital number, since it uses as much as digits as its factorization.

531531079 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14175, while the sum is 34.

The square root of 531531079 is about 23054.9577965348. The cubic root of 531531079 is about 810.0457622878.

The spelling of 531531079 in words is "five hundred thirty-one million, five hundred thirty-one thousand, seventy-nine".