134443140 has 96 divisors (see below), whose sum is σ = 429287040. Its totient is φ = 31143936.

The previous prime is 134443121. The next prime is 134443189. The reversal of 134443140 is 41344431.

It is a self number, because there is not a number n which added to its sum of digits gives 134443140.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8191 + ... + 18329.

It is an arithmetic number, because the mean of its divisors is an integer number (4471740).

Almost surely, 2^134443140 is an apocalyptic number.

134443140 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 134443140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (214643520).

134443140 is an abundant number, since it is smaller than the sum of its proper divisors (294843900).

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

134443140 is a wasteful number, since it uses less digits than its factorization.

134443140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10181 (or 10179 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

The square root of 134443140 is about 11594.9618369359. The cubic root of 134443140 is about 512.2864658714.

Adding to 134443140 its reverse (41344431), we get a palindrome (175787571).

The spelling of 134443140 in words is "one hundred thirty-four million, four hundred forty-three thousand, one hundred forty".