133321206887 has 8 divisors (see below), whose sum is σ = 145451630352. Its totient is φ = 121192502400.

The previous prime is 133321206877. The next prime is 133321206917. The reversal of 133321206887 is 788602123331.

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 133321206887 - 2²⁸ = 133052771431 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 (133321206817) 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, 264818 + ... + 580319.

It is an arithmetic number, because the mean of its divisors is an integer number (18181453794).

Almost surely, 2^133321206887 is an apocalyptic number.

133321206887 is a deficient number, since it is larger than the sum of its proper divisors (12130423465).

133321206887 is a wasteful number, since it uses less digits than its factorization.

133321206887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 859489.

The product of its (nonzero) digits is 290304, while the sum is 44.

The spelling of 133321206887 in words is "one hundred thirty-three billion, three hundred twenty-one million, two hundred six thousand, eight hundred eighty-seven".