133056081 has 32 divisors (see below), whose sum is σ = 207083520. Its totient is φ = 84273552.

The previous prime is 133056073. The next prime is 133056083. The reversal of 133056081 is 180650331.

It is not a de Polignac number, because 133056081 - 2³ = 133056073 is a prime.

It is a super-2 number, since 2×133056081² = 35407841382157122, which contains 22 as substring.

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

It is not an unprimeable number, because it can be changed into a prime (133056083) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 103066 + ... + 104348.

It is an arithmetic number, because the mean of its divisors is an integer number (6471360).

Almost surely, 2^133056081 is an apocalyptic number.

It is an amenable number.

133056081 is a deficient number, since it is larger than the sum of its proper divisors (74027439).

133056081 is a wasteful number, since it uses less digits than its factorization.

133056081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1482 (or 1476 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 133056081 is about 11534.9937581257. The cubic root of 133056081 is about 510.5186074093.

The spelling of 133056081 in words is "one hundred thirty-three million, fifty-six thousand, eighty-one".