144097220 has 12 divisors (see below), whose sum is σ = 302604204. Its totient is φ = 57638880.

The previous prime is 144097211. The next prime is 144097223. The reversal of 144097220 is 22790441.

It can be written as a sum of positive squares in 2 ways, for example, as 23580736 + 120516484 = 4856^2 + 10978^2 .

It is not an unprimeable number, because it can be changed into a prime (144097223) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3602411 + ... + 3602450.

It is an arithmetic number, because the mean of its divisors is an integer number (25217017).

Almost surely, 2^144097220 is an apocalyptic number.

144097220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

144097220 is an abundant number, since it is smaller than the sum of its proper divisors (158506984).

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

144097220 is a wasteful number, since it uses less digits than its factorization.

144097220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7204870 (or 7204868 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 144097220 is about 12004.0501498453. The cubic root of 144097220 is about 524.2662099347.

The spelling of 144097220 in words is "one hundred forty-four million, ninety-seven thousand, two hundred twenty".