133149808185 has 16 divisors (see below), whose sum is σ = 222302289024. Its totient is φ = 67925699072.

The previous prime is 133149808117. The next prime is 133149808219. The reversal of 133149808185 is 581808941331.

It is not a de Polignac number, because 133149808185 - 2⁹ = 133149807673 is a prime.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 192970392 + ... + 192971081.

It is an arithmetic number, because the mean of its divisors is an integer number (13893893064).

Almost surely, 2^133149808185 is an apocalyptic number.

133149808185 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

133149808185 is a deficient number, since it is larger than the sum of its proper divisors (89152480839).

133149808185 is a wasteful number, since it uses less digits than its factorization.

133149808185 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 385941504.

The product of its (nonzero) digits is 829440, while the sum is 51.

The spelling of 133149808185 in words is "one hundred thirty-three billion, one hundred forty-nine million, eight hundred eight thousand, one hundred eighty-five".