133936087 has 4 divisors (see below), whose sum is σ = 134029720. Its totient is φ = 133842456.

The previous prime is 133936069. The next prime is 133936097. The reversal of 133936087 is 780639331.

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 133936087 - 2¹¹ = 133934039 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133936037) 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, 44637 + ... + 47542.

It is an arithmetic number, because the mean of its divisors is an integer number (33507430).

Almost surely, 2^133936087 is an apocalyptic number.

133936087 is a deficient number, since it is larger than the sum of its proper divisors (93633).

133936087 is an equidigital number, since it uses as much as digits as its factorization.

133936087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93632.

The product of its (nonzero) digits is 81648, while the sum is 40.

The square root of 133936087 is about 11573.0759523992. The cubic root of 133936087 is about 511.6416241615.

The spelling of 133936087 in words is "one hundred thirty-three million, nine hundred thirty-six thousand, eighty-seven".