325384681 has 2 divisors, whose sum is σ = 325384682. Its totient is φ = 325384680.

The previous prime is 325384679. The next prime is 325384723. The reversal of 325384681 is 186483523.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 218448400 + 106936281 = 14780^2 + 10341^2 .

It is a cyclic number.

It is not a de Polignac number, because 325384681 - 2¹ = 325384679 is a prime.

It is a super-2 number, since 2×325384681² = 211750381258943522, which contains 22 as substring.

Together with 325384679, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (325384601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 162692340 + 162692341.

It is an arithmetic number, because the mean of its divisors is an integer number (162692341).

Almost surely, 2^325384681 is an apocalyptic number.

325384681 is the 11409-th centered pentagonal number.

It is an amenable number.

325384681 is a deficient number, since it is larger than the sum of its proper divisors (1).

325384681 is an equidigital number, since it uses as much as digits as its factorization.

325384681 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 138240, while the sum is 40.

The square root of 325384681 is about 18038.4223534100. The cubic root of 325384681 is about 687.8055895907.

The spelling of 325384681 in words is "three hundred twenty-five million, three hundred eighty-four thousand, six hundred eighty-one".