133681586127 has 8 divisors (see below), whose sum is σ = 178263771264. Its totient is φ = 89110229208.

The previous prime is 133681586123. The next prime is 133681586141. The reversal of 133681586127 is 721685186331.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 133681586127 - 2² = 133681586123 is a prime.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 133681586127.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133681586123) 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, 2678203 + ... + 2727660.

It is an arithmetic number, because the mean of its divisors is an integer number (22282971408).

Almost surely, 2^133681586127 is an apocalyptic number.

133681586127 is a deficient number, since it is larger than the sum of its proper divisors (44582185137).

133681586127 is an equidigital number, since it uses as much as digits as its factorization.

133681586127 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5414109.

The product of its digits is 1451520, while the sum is 51.

The spelling of 133681586127 in words is "one hundred thirty-three billion, six hundred eighty-one million, five hundred eighty-six thousand, one hundred twenty-seven".