134534140 has 72 divisors (see below), whose sum is σ = 312113088. Its totient is φ = 48672000.

The previous prime is 134534131. The next prime is 134534167. The reversal of 134534140 is 41435431.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 178765 + ... + 179515.

It is an arithmetic number, because the mean of its divisors is an integer number (4334904).

Almost surely, 2^134534140 is an apocalyptic number.

134534140 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 134534140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (156056544).

134534140 is an abundant number, since it is smaller than the sum of its proper divisors (177578948).

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

134534140 is a wasteful number, since it uses less digits than its factorization.

134534140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 839 (or 824 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 134534140 is about 11598.8852912683. The cubic root of 134534140 is about 512.4020229123.

Adding to 134534140 its reverse (41435431), we get a palindrome (175969571).

The spelling of 134534140 in words is "one hundred thirty-four million, five hundred thirty-four thousand, one hundred forty".