133684105 has 12 divisors (see below), whose sum is σ = 162086796. Its totient is φ = 105848000.

The previous prime is 133684091. The next prime is 133684127. The reversal of 133684105 is 501486331.

It can be written as a sum of positive squares in 6 ways, for example, as 54331641 + 79352464 = 7371^2 + 8908^2 .

It is not a de Polignac number, because 133684105 - 2¹⁵ = 133651337 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 49695 + ... + 52315.

It is an arithmetic number, because the mean of its divisors is an integer number (13507233).

Almost surely, 2^133684105 is an apocalyptic number.

It is an amenable number.

133684105 is a deficient number, since it is larger than the sum of its proper divisors (28402691).

133684105 is an equidigital number, since it uses as much as digits as its factorization.

133684105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2828 (or 2727 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 133684105 is about 11562.1842659594. The cubic root of 133684105 is about 511.3205620331.

The spelling of 133684105 in words is "one hundred thirty-three million, six hundred eighty-four thousand, one hundred five".