134544420 has 72 divisors (see below), whose sum is σ = 417633216. Its totient is φ = 35042112.

The previous prime is 134544419. The next prime is 134544437. The reversal of 134544420 is 24445431.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 952 + ... + 16431.

Almost surely, 2^134544420 is an apocalyptic number.

134544420 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 134544420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (208816608).

134544420 is an abundant number, since it is smaller than the sum of its proper divisors (283088796).

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

134544420 is a wasteful number, since it uses less digits than its factorization.

134544420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17441 (or 17436 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 27.

The square root of 134544420 is about 11599.3284288359. The cubic root of 134544420 is about 512.4150737722.

Adding to 134544420 its reverse (24445431), we get a palindrome (158989851).

The spelling of 134544420 in words is "one hundred thirty-four million, five hundred forty-four thousand, four hundred twenty".