326133081 has 16 divisors (see below), whose sum is σ = 508590400. Its totient is φ = 205978464.

The previous prime is 326133013. The next prime is 326133089. The reversal of 326133081 is 180331623.

It is a happy number.

326133081 is a `hidden beast` number, since 326 + 1 + 330 + 8 + 1 = 666.

It is not a de Polignac number, because 326133081 - 2¹⁷ = 326002009 is a prime.

It is a super-2 number, since 2×326133081² = 212725573045105122, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (326133089) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 317356 + ... + 318381.

It is an arithmetic number, because the mean of its divisors is an integer number (31786900).

Almost surely, 2^326133081 is an apocalyptic number.

It is an amenable number.

326133081 is a deficient number, since it is larger than the sum of its proper divisors (182457319).

326133081 is a wasteful number, since it uses less digits than its factorization.

326133081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 635765 (or 635759 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 326133081 is about 18059.1550466792. The cubic root of 326133081 is about 688.3325141657.

The spelling of 326133081 in words is "three hundred twenty-six million, one hundred thirty-three thousand, eighty-one".