134891244 has 84 divisors (see below), whose sum is σ = 357332304. Its totient is φ = 44533152.

The previous prime is 134891231. The next prime is 134891249. The reversal of 134891244 is 442198431.

It is a happy number.

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 = 134891199 and 134891208.

It is not an unprimeable number, because it can be changed into a prime (134891249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 486834 + ... + 487110.

It is an arithmetic number, because the mean of its divisors is an integer number (4253956).

Almost surely, 2^134891244 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 134891244, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (178666152).

134891244 is an abundant number, since it is smaller than the sum of its proper divisors (222441060).

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

134891244 is a wasteful number, since it uses less digits than its factorization.

134891244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 466 (or 449 counting only the distinct ones).

The product of its digits is 27648, while the sum is 36.

The square root of 134891244 is about 11614.2689825921. The cubic root of 134891244 is about 512.8549913322.

The spelling of 134891244 in words is "one hundred thirty-four million, eight hundred ninety-one thousand, two hundred forty-four".