531232747 has 2 divisors, whose sum is σ = 531232748. Its totient is φ = 531232746.

The previous prime is 531232703. The next prime is 531232781. The reversal of 531232747 is 747232135.

It is an a-pointer prime, because the next prime (531232781) can be obtained adding 531232747 to its sum of digits (34).

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-531232747 is a prime.

It is not a weakly prime, because it can be changed into another prime (531232447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 265616373 + 265616374.

It is an arithmetic number, because the mean of its divisors is an integer number (265616374).

Almost surely, 2^531232747 is an apocalyptic number.

531232747 is a deficient number, since it is larger than the sum of its proper divisors (1).

531232747 is an equidigital number, since it uses as much as digits as its factorization.

531232747 is an evil number, because the sum of its binary digits is even.

The product of its digits is 35280, while the sum is 34.

The square root of 531232747 is about 23048.4868700746. The cubic root of 531232747 is about 809.8941826915.

The spelling of 531232747 in words is "five hundred thirty-one million, two hundred thirty-two thousand, seven hundred forty-seven".