326100081 has 4 divisors (see below), whose sum is σ = 434800112. Its totient is φ = 217400052.

The previous prime is 326100077. The next prime is 326100107. The reversal of 326100081 is 180001623.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 180001623 = 3 ⋅60000541.

It is not a de Polignac number, because 326100081 - 2² = 326100077 is a prime.

It is a super-2 number, since 2×326100081² = 212682525656413122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (326100031) 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 3 ways as a sum of consecutive naturals, for example, 54350011 + ... + 54350016.

It is an arithmetic number, because the mean of its divisors is an integer number (108700028).

Almost surely, 2^326100081 is an apocalyptic number.

It is an amenable number.

326100081 is a deficient number, since it is larger than the sum of its proper divisors (108700031).

326100081 is a wasteful number, since it uses less digits than its factorization.

326100081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108700030.

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 326100081 is about 18058.2413595566. The cubic root of 326100081 is about 688.3092969163.

The spelling of 326100081 in words is "three hundred twenty-six million, one hundred thousand, eighty-one".