133118805 has 32 divisors (see below), whose sum is σ = 224575488. Its totient is φ = 67233600.

The previous prime is 133118801. The next prime is 133118819. The reversal of 133118805 is 508811331.

It is not a de Polignac number, because 133118805 - 2² = 133118801 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133118801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18810 + ... + 24900.

It is an arithmetic number, because the mean of its divisors is an integer number (7017984).

Almost surely, 2^133118805 is an apocalyptic number.

133118805 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

133118805 is a deficient number, since it is larger than the sum of its proper divisors (91456683).

133118805 is a wasteful number, since it uses less digits than its factorization.

133118805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6177.

The product of its (nonzero) digits is 2880, while the sum is 30.

The square root of 133118805 is about 11537.7122949049. The cubic root of 133118805 is about 510.5988160411.

The spelling of 133118805 in words is "one hundred thirty-three million, one hundred eighteen thousand, eight hundred five".