133673806 has 16 divisors (see below), whose sum is σ = 229365216. Its totient is φ = 57236256.

The previous prime is 133673801. The next prime is 133673809. The reversal of 133673806 is 608376331.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133673801) 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 7 ways as a sum of consecutive naturals, for example, 14140 + ... + 21616.

It is an arithmetic number, because the mean of its divisors is an integer number (14335326).

Almost surely, 2^133673806 is an apocalyptic number.

133673806 is a deficient number, since it is larger than the sum of its proper divisors (95691410).

133673806 is a wasteful number, since it uses less digits than its factorization.

133673806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8763.

The product of its (nonzero) digits is 54432, while the sum is 37.

The square root of 133673806 is about 11561.7388830573. The cubic root of 133673806 is about 511.3074310138.

The spelling of 133673806 in words is "one hundred thirty-three million, six hundred seventy-three thousand, eight hundred six".