144181116 has 36 divisors (see below), whose sum is σ = 365444352. Its totient is φ = 47930304.

The previous prime is 144181067. The next prime is 144181123. The reversal of 144181116 is 611181441.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×144181116² = 41576388422010912, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 144181116.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8560 + ... + 19016.

It is an arithmetic number, because the mean of its divisors is an integer number (10151232).

Almost surely, 2^144181116 is an apocalyptic number.

It is an amenable number.

144181116 is an abundant number, since it is smaller than the sum of its proper divisors (221263236).

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

144181116 is a wasteful number, since it uses less digits than its factorization.

144181116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10850 (or 10845 counting only the distinct ones).

The product of its digits is 768, while the sum is 27.

The square root of 144181116 is about 12007.5441285885. The cubic root of 144181116 is about 524.3679359422.

The spelling of 144181116 in words is "one hundred forty-four million, one hundred eighty-one thousand, one hundred sixteen".