531366041 has 2 divisors, whose sum is σ = 531366042. Its totient is φ = 531366040.

The previous prime is 531366023. The next prime is 531366047. The reversal of 531366041 is 140663135.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 457061641 + 74304400 = 21379^2 + 8620^2 .

It is a cyclic number.

It is not a de Polignac number, because 531366041 - 2¹⁸ = 531103897 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 531365995 and 531366013.

It is not a weakly prime, because it can be changed into another prime (531366047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 265683020 + 265683021.

It is an arithmetic number, because the mean of its divisors is an integer number (265683021).

Almost surely, 2^531366041 is an apocalyptic number.

It is an amenable number.

531366041 is a deficient number, since it is larger than the sum of its proper divisors (1).

531366041 is an equidigital number, since it uses as much as digits as its factorization.

531366041 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6480, while the sum is 29.

The square root of 531366041 is about 23051.3782885102. The cubic root of 531366041 is about 809.9619150919.

The spelling of 531366041 in words is "five hundred thirty-one million, three hundred sixty-six thousand, forty-one".