133808107 has 4 divisors (see below), whose sum is σ = 136655136. Its totient is φ = 130961080.

The previous prime is 133808083. The next prime is 133808111. The reversal of 133808107 is 701808331.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 133808107 - 2¹¹ = 133806059 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133808177) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1423444 + ... + 1423537.

It is an arithmetic number, because the mean of its divisors is an integer number (34163784).

Almost surely, 2^133808107 is an apocalyptic number.

133808107 is a deficient number, since it is larger than the sum of its proper divisors (2847029).

133808107 is an equidigital number, since it uses as much as digits as its factorization.

133808107 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2847028.

The product of its (nonzero) digits is 4032, while the sum is 31.

The square root of 133808107 is about 11567.5454181084. The cubic root of 133808107 is about 511.4786091902.

The spelling of 133808107 in words is "one hundred thirty-three million, eight hundred eight thousand, one hundred seven".