531517241 has 2 divisors, whose sum is σ = 531517242. Its totient is φ = 531517240.

The previous prime is 531517237. The next prime is 531517271. The reversal of 531517241 is 142715135.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 482461225 + 49056016 = 21965^2 + 7004^2 .

It is a cyclic number.

It is not a de Polignac number, because 531517241 - 2² = 531517237 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (531517201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 265758620 + 265758621.

It is an arithmetic number, because the mean of its divisors is an integer number (265758621).

Almost surely, 2^531517241 is an apocalyptic number.

It is an amenable number.

531517241 is a deficient number, since it is larger than the sum of its proper divisors (1).

531517241 is an equidigital number, since it uses as much as digits as its factorization.

531517241 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4200, while the sum is 29.

The square root of 531517241 is about 23054.6576855958. The cubic root of 531517241 is about 810.0387325887.

The spelling of 531517241 in words is "five hundred thirty-one million, five hundred seventeen thousand, two hundred forty-one".