134745444 has 96 divisors (see below), whose sum is σ = 360196480. Its totient is φ = 44089920.

The previous prime is 134745419. The next prime is 134745449. The reversal of 134745444 is 444547431.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 134745399 and 134745408.

It is not an unprimeable number, because it can be changed into a prime (134745449) 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, 638499 + ... + 638709.

Almost surely, 2^134745444 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 134745444, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (180098240).

134745444 is an abundant number, since it is smaller than the sum of its proper divisors (225451036).

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

134745444 is an equidigital number, since it uses as much as digits as its factorization.

134745444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 309 (or 289 counting only the distinct ones).

The product of its digits is 107520, while the sum is 36.

The square root of 134745444 is about 11607.9905237728. The cubic root of 134745444 is about 512.6701480660.

The spelling of 134745444 in words is "one hundred thirty-four million, seven hundred forty-five thousand, four hundred forty-four".