325120681 has 2 divisors, whose sum is σ = 325120682. Its totient is φ = 325120680.

The previous prime is 325120673. The next prime is 325120727. The reversal of 325120681 is 186021523.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 234090000 + 91030681 = 15300^2 + 9541^2 .

It is an emirp because it is prime and its reverse (186021523) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 325120681 - 2³ = 325120673 is a prime.

It is a super-2 number, since 2×325120681² = 211406914427807522, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (325120181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 162560340 + 162560341.

It is an arithmetic number, because the mean of its divisors is an integer number (162560341).

Almost surely, 2^325120681 is an apocalyptic number.

It is an amenable number.

325120681 is a deficient number, since it is larger than the sum of its proper divisors (1).

325120681 is an equidigital number, since it uses as much as digits as its factorization.

325120681 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 325120681 is about 18031.1031553813. The cubic root of 325120681 is about 687.6195228449.

It can be divided in two parts, 3251 and 20681, that added together give a palindrome (23932).

The spelling of 325120681 in words is "three hundred twenty-five million, one hundred twenty thousand, six hundred eighty-one".