531320093 has 2 divisors, whose sum is σ = 531320094. Its totient is φ = 531320092.

The previous prime is 531320089. The next prime is 531320137. The reversal of 531320093 is 390023135.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 311628409 + 219691684 = 17653^2 + 14822^2 .

It is a cyclic number.

It is not a de Polignac number, because 531320093 - 2² = 531320089 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (531328093) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 265660046 + 265660047.

It is an arithmetic number, because the mean of its divisors is an integer number (265660047).

Almost surely, 2^531320093 is an apocalyptic number.

It is an amenable number.

531320093 is a deficient number, since it is larger than the sum of its proper divisors (1).

531320093 is an equidigital number, since it uses as much as digits as its factorization.

531320093 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2430, while the sum is 26.

The square root of 531320093 is about 23050.3816237389. The cubic root of 531320093 is about 809.9385682212.

The spelling of 531320093 in words is "five hundred thirty-one million, three hundred twenty thousand, ninety-three".