531230047 has 2 divisors, whose sum is σ = 531230048. Its totient is φ = 531230046.

The previous prime is 531230039. The next prime is 531230083. The reversal of 531230047 is 740032135.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 531230047 - 2³ = 531230039 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (531230017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 265615023 + 265615024.

It is an arithmetic number, because the mean of its divisors is an integer number (265615024).

Almost surely, 2^531230047 is an apocalyptic number.

531230047 is a deficient number, since it is larger than the sum of its proper divisors (1).

531230047 is an equidigital number, since it uses as much as digits as its factorization.

531230047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2520, while the sum is 25.

The square root of 531230047 is about 23048.4282978254. The cubic root of 531230047 is about 809.8928105886.

The spelling of 531230047 in words is "five hundred thirty-one million, two hundred thirty thousand, forty-seven".