531046939 has 2 divisors, whose sum is σ = 531046940. Its totient is φ = 531046938.

The previous prime is 531046933. The next prime is 531046951. The reversal of 531046939 is 939640135.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 531046939 - 2¹⁷ = 530915867 is a prime.

It is not a weakly prime, because it can be changed into another prime (531046933) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 265523469 + 265523470.

It is an arithmetic number, because the mean of its divisors is an integer number (265523470).

Almost surely, 2^531046939 is an apocalyptic number.

531046939 is a deficient number, since it is larger than the sum of its proper divisors (1).

531046939 is an equidigital number, since it uses as much as digits as its factorization.

531046939 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 87480, while the sum is 40.

The square root of 531046939 is about 23044.4557106476. The cubic root of 531046939 is about 809.7997467671.

The spelling of 531046939 in words is "five hundred thirty-one million, forty-six thousand, nine hundred thirty-nine".