133666105 has 16 divisors (see below), whose sum is σ = 163586304. Its totient is φ = 104828800.

The previous prime is 133666081. The next prime is 133666129. The reversal of 133666105 is 501666331.

It is an interprime number because it is at equal distance from previous prime (133666081) and next prime (133666129).

It is not a de Polignac number, because 133666105 - 2⁹ = 133665593 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 55680 + ... + 58030.

It is an arithmetic number, because the mean of its divisors is an integer number (10224144).

Almost surely, 2^133666105 is an apocalyptic number.

It is an amenable number.

133666105 is a deficient number, since it is larger than the sum of its proper divisors (29920199).

133666105 is a wasteful number, since it uses less digits than its factorization.

133666105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2576.

The product of its (nonzero) digits is 9720, while the sum is 31.

The square root of 133666105 is about 11561.4058401217. The cubic root of 133666105 is about 511.2976119518.

The spelling of 133666105 in words is "one hundred thirty-three million, six hundred sixty-six thousand, one hundred five".