133887073 has 8 divisors (see below), whose sum is σ = 134991360. Its totient is φ = 132786720.

The previous prime is 133887049. The next prime is 133887137. The reversal of 133887073 is 370788331.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 133887073 - 2⁵ = 133887041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133881073) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 134608 + ... + 135598.

It is an arithmetic number, because the mean of its divisors is an integer number (16873920).

Almost surely, 2^133887073 is an apocalyptic number.

It is an amenable number.

133887073 is a deficient number, since it is larger than the sum of its proper divisors (1104287).

133887073 is an equidigital number, since it uses as much as digits as its factorization.

133887073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1967.

The product of its (nonzero) digits is 84672, while the sum is 40.

The square root of 133887073 is about 11570.9581712147. The cubic root of 133887073 is about 511.5792046827.

The spelling of 133887073 in words is "one hundred thirty-three million, eight hundred eighty-seven thousand, seventy-three".