324133681 has 2 divisors, whose sum is σ = 324133682. Its totient is φ = 324133680.

The previous prime is 324133633. The next prime is 324133697. The reversal of 324133681 is 186331423.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 320983056 + 3150625 = 17916^2 + 1775^2 .

It is a cyclic number.

It is not a de Polignac number, because 324133681 - 2¹⁹ = 323609393 is a prime.

It is a super-2 number, since 2×324133681² = 210125286317219522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (324133631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 162066840 + 162066841.

It is an arithmetic number, because the mean of its divisors is an integer number (162066841).

Almost surely, 2^324133681 is an apocalyptic number.

It is an amenable number.

324133681 is a deficient number, since it is larger than the sum of its proper divisors (1).

324133681 is an equidigital number, since it uses as much as digits as its factorization.

324133681 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10368, while the sum is 31.

The square root of 324133681 is about 18003.7129781609. The cubic root of 324133681 is about 686.9229933736.

The spelling of 324133681 in words is "three hundred twenty-four million, one hundred thirty-three thousand, six hundred eighty-one".