134043421040 has 80 divisors (see below), whose sum is σ = 330700708800. Its totient is φ = 50353704960.

The previous prime is 134043421033. The next prime is 134043421049. The reversal of 134043421040 is 40124340431.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134043421049) 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 15 ways as a sum of consecutive naturals, for example, 520061 + ... + 733859.

It is an arithmetic number, because the mean of its divisors is an integer number (4133758860).

Almost surely, 2^134043421040 is an apocalyptic number.

134043421040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 134043421040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (165350354400).

134043421040 is an abundant number, since it is smaller than the sum of its proper divisors (196657287760).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

134043421040 is a wasteful number, since it uses less digits than its factorization.

134043421040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 214290 (or 214284 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 134043421040 its reverse (40124340431), we get a palindrome (174167761471).

The spelling of 134043421040 in words is "one hundred thirty-four billion, forty-three million, four hundred twenty-one thousand, forty".