531000079 has 2 divisors, whose sum is σ = 531000080. Its totient is φ = 531000078.

The previous prime is 531000013. The next prime is 531000097. The reversal of 531000079 is 970000135.

Together with next prime (531000097) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 531000079 - 2¹¹ = 530998031 is a prime.

It is a super-2 number, since 2×531000079² = 563922167796012482, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (531000479) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 265500039 + 265500040.

It is an arithmetic number, because the mean of its divisors is an integer number (265500040).

Almost surely, 2^531000079 is an apocalyptic number.

531000079 is a deficient number, since it is larger than the sum of its proper divisors (1).

531000079 is an equidigital number, since it uses as much as digits as its factorization.

531000079 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 945, while the sum is 25.

The square root of 531000079 is about 23043.4389577598. The cubic root of 531000079 is about 809.7759269441.

The spelling of 531000079 in words is "five hundred thirty-one million, seventy-nine", and thus it is an aban number.