144181716 has 72 divisors (see below), whose sum is σ = 396829440. Its totient is φ = 40618368.

The previous prime is 144181693. The next prime is 144181727. The reversal of 144181716 is 617181441.

It is a congruent 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, 41245 + ... + 44603.

It is an arithmetic number, because the mean of its divisors is an integer number (5511520).

Almost surely, 2^144181716 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 144181716, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (198414720).

144181716 is an abundant number, since it is smaller than the sum of its proper divisors (252647724).

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

144181716 is a wasteful number, since it uses less digits than its factorization.

144181716 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3453 (or 3444 counting only the distinct ones).

The product of its digits is 5376, while the sum is 33.

The square root of 144181716 is about 12007.5691128554. The cubic root of 144181716 is about 524.3686633151.

The spelling of 144181716 in words is "one hundred forty-four million, one hundred eighty-one thousand, seven hundred sixteen".