133681608127 has 8 divisors (see below), whose sum is σ = 134636222736. Its totient is φ = 132728299392.

The previous prime is 133681608091. The next prime is 133681608133. The reversal of 133681608127 is 721806186331.

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 133681608127 - 2¹⁵ = 133681575359 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 (133681608727) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 120538 + ... + 530935.

It is an arithmetic number, because the mean of its divisors is an integer number (16829527842).

Almost surely, 2^133681608127 is an apocalyptic number.

133681608127 is a deficient number, since it is larger than the sum of its proper divisors (954614609).

133681608127 is a wasteful number, since it uses less digits than its factorization.

133681608127 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 652937.

The product of its (nonzero) digits is 290304, while the sum is 46.

The spelling of 133681608127 in words is "one hundred thirty-three billion, six hundred eighty-one million, six hundred eight thousand, one hundred twenty-seven".