133534078917 has 4 divisors (see below), whose sum is σ = 178045438560. Its totient is φ = 89022719276.

The previous prime is 133534078913. The next prime is 133534078943. The reversal of 133534078917 is 719870435331.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 133534078917 - 2² = 133534078913 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 133534078917.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133534078913) 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 3 ways as a sum of consecutive naturals, for example, 22255679817 + ... + 22255679822.

It is an arithmetic number, because the mean of its divisors is an integer number (44511359640).

Almost surely, 2^133534078917 is an apocalyptic number.

It is an amenable number.

133534078917 is a deficient number, since it is larger than the sum of its proper divisors (44511359643).

133534078917 is an equidigital number, since it uses as much as digits as its factorization.

133534078917 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44511359642.

The product of its (nonzero) digits is 1905120, while the sum is 51.

The spelling of 133534078917 in words is "one hundred thirty-three billion, five hundred thirty-four million, seventy-eight thousand, nine hundred seventeen".