133515432788 has 6 divisors (see below), whose sum is σ = 233652007386. Its totient is φ = 66757716392.

The previous prime is 133515432773. The next prime is 133515432821. The reversal of 133515432788 is 887234515331.

It can be written as a sum of positive squares in only one way, i.e., 130117475524 + 3397957264 = 360718^2 + 58292^2 .

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 16689429095 + ... + 16689429102.

It is an arithmetic number, because the mean of its divisors is an integer number (38942001231).

Almost surely, 2^133515432788 is an apocalyptic number.

It is an amenable number.

133515432788 is a deficient number, since it is larger than the sum of its proper divisors (100136574598).

133515432788 is a wasteful number, since it uses less digits than its factorization.

133515432788 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33378858201 (or 33378858199 counting only the distinct ones).

The product of its digits is 2419200, while the sum is 50.

The spelling of 133515432788 in words is "one hundred thirty-three billion, five hundred fifteen million, four hundred thirty-two thousand, seven hundred eighty-eight".