134889144 has 32 divisors (see below), whose sum is σ = 363163920. Its totient is φ = 41504256.

The previous prime is 134889133. The next prime is 134889149. The reversal of 134889144 is 441988431.

It is a junction number, because it is equal to n+sod(n) for n = 134889096 and 134889105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134889149) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 215857 + ... + 216480.

Almost surely, 2^134889144 is an apocalyptic number.

It is an amenable number.

134889144 is an abundant number, since it is smaller than the sum of its proper divisors (228274776).

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

134889144 is a wasteful number, since it uses less digits than its factorization.

134889144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 432359 (or 432355 counting only the distinct ones).

The product of its digits is 110592, while the sum is 42.

The square root of 134889144 is about 11614.1785762059. The cubic root of 134889144 is about 512.8523299263.

The spelling of 134889144 in words is "one hundred thirty-four million, eight hundred eighty-nine thousand, one hundred forty-four".