144134520 has 64 divisors (see below), whose sum is σ = 434142720. Its totient is φ = 38281344.

The previous prime is 144134519. The next prime is 144134539. The reversal of 144134520 is 25431441.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29277 + ... + 33843.

It is an arithmetic number, because the mean of its divisors is an integer number (6783480).

Almost surely, 2^144134520 is an apocalyptic number.

144134520 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 144134520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (217071360).

144134520 is an abundant number, since it is smaller than the sum of its proper divisors (290008200).

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

144134520 is a wasteful number, since it uses less digits than its factorization.

144134520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4844 (or 4840 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 144134520 is about 12005.6036916100. The cubic root of 144134520 is about 524.3114419953.

Adding to 144134520 its reverse (25431441), we get a palindrome (169565961).

The spelling of 144134520 in words is "one hundred forty-four million, one hundred thirty-four thousand, five hundred twenty".