133452081 has 24 divisors (see below), whose sum is σ = 226259904. Its totient is φ = 74196000.

The previous prime is 133452073. The next prime is 133452119. The reversal of 133452081 is 180254331.

It is a happy number.

133452081 is a `hidden beast` number, since 133 + 4 + 520 + 8 + 1 = 666.

It is not a de Polignac number, because 133452081 - 2³ = 133452073 is a prime.

It is a super-2 number, since 2×133452081² = 35618915846461122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (133452001) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 26295 + ... + 30956.

It is an arithmetic number, because the mean of its divisors is an integer number (9427496).

Almost surely, 2^133452081 is an apocalyptic number.

It is an amenable number.

133452081 is a deficient number, since it is larger than the sum of its proper divisors (92807823).

133452081 is a wasteful number, since it uses less digits than its factorization.

133452081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57301 (or 57298 counting only the distinct ones).

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

The square root of 133452081 is about 11552.1461642415. The cubic root of 133452081 is about 511.0245723558.

The spelling of 133452081 in words is "one hundred thirty-three million, four hundred fifty-two thousand, eighty-one".