144022216 has 16 divisors (see below), whose sum is σ = 290814300. Its totient is φ = 66471744.

The previous prime is 144022201. The next prime is 144022231. The reversal of 144022216 is 612220441.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (144022201) and next prime (144022231).

It can be written as a sum of positive squares in 2 ways, for example, as 114276100 + 29746116 = 10690^2 + 5454^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 692311 + ... + 692518.

Almost surely, 2^144022216 is an apocalyptic number.

It is an amenable number.

144022216 is an abundant number, since it is smaller than the sum of its proper divisors (146792084).

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

144022216 is a wasteful number, since it uses less digits than its factorization.

144022216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1384848 (or 1384844 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 144022216 is about 12000.9256309670. The cubic root of 144022216 is about 524.1752322663.

Adding to 144022216 its reverse (612220441), we get a palindrome (756242657).

The spelling of 144022216 in words is "one hundred forty-four million, twenty-two thousand, two hundred sixteen".