134945538 has 64 divisors (see below), whose sum is σ = 336026880. Its totient is φ = 35177472.

The previous prime is 134945521. The next prime is 134945539. The reversal of 134945538 is 835549431.

134945538 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×134945538² = 36420596452218888, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 134945538.

It is not an unprimeable number, because it can be changed into a prime (134945539) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 47206 + ... + 49982.

It is an arithmetic number, because the mean of its divisors is an integer number (5250420).

Almost surely, 2^134945538 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 134945538, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (168013440).

134945538 is an abundant number, since it is smaller than the sum of its proper divisors (201081342).

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

134945538 is a wasteful number, since it uses less digits than its factorization.

134945538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2891.

The product of its digits is 259200, while the sum is 42.

The square root of 134945538 is about 11616.6061308801. The cubic root of 134945538 is about 512.9237904947.

The spelling of 134945538 in words is "one hundred thirty-four million, nine hundred forty-five thousand, five hundred thirty-eight".