326205081 has 12 divisors (see below), whose sum is σ = 471477552. Its totient is φ = 217335096.

The previous prime is 326205073. The next prime is 326205109. The reversal of 326205081 is 180502623.

326205081 is a `hidden beast` number, since 32 + 620 + 5 + 0 + 8 + 1 = 666.

It is not a de Polignac number, because 326205081 - 2³ = 326205073 is a prime.

It is a super-2 number, since 2×326205081² = 212819509740433122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (326205001) 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 in 11 ways as a sum of consecutive naturals, for example, 5350 + ... + 26096.

It is an arithmetic number, because the mean of its divisors is an integer number (39289796).

Almost surely, 2^326205081 is an apocalyptic number.

It is an amenable number.

326205081 is a deficient number, since it is larger than the sum of its proper divisors (145272471).

326205081 is a wasteful number, since it uses less digits than its factorization.

326205081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22500 (or 22497 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 326205081 is about 18061.1483854156. The cubic root of 326205081 is about 688.3831645466.

The spelling of 326205081 in words is "three hundred twenty-six million, two hundred five thousand, eighty-one".