134878136127 has 48 divisors (see below), whose sum is σ = 216717640704. Its totient is φ = 74320848000.

The previous prime is 134878135979. The next prime is 134878136161. The reversal of 134878136127 is 721631878431.

It is not a de Polignac number, because 134878136127 - 2¹² = 134878132031 is a prime.

It is a super-2 number, since 2×134878136127² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 134878136127.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134878136927) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1227852 + ... + 1333182.

It is an arithmetic number, because the mean of its divisors is an integer number (4514950848).

Almost surely, 2^134878136127 is an apocalyptic number.

134878136127 is a deficient number, since it is larger than the sum of its proper divisors (81839504577).

134878136127 is a wasteful number, since it uses less digits than its factorization.

134878136127 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105660 (or 105653 counting only the distinct ones).

The product of its digits is 1354752, while the sum is 51.

The spelling of 134878136127 in words is "one hundred thirty-four billion, eight hundred seventy-eight million, one hundred thirty-six thousand, one hundred twenty-seven".