144022115 has 4 divisors (see below), whose sum is σ = 172826544. Its totient is φ = 115217688.

The previous prime is 144022069. The next prime is 144022129. The reversal of 144022115 is 511220441.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 144022115 - 2⁶ = 144022051 is a prime.

It is a Duffinian 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 3 ways as a sum of consecutive naturals, for example, 14402207 + ... + 14402216.

It is an arithmetic number, because the mean of its divisors is an integer number (43206636).

Almost surely, 2^144022115 is an apocalyptic number.

144022115 is a deficient number, since it is larger than the sum of its proper divisors (28804429).

144022115 is an equidigital number, since it uses as much as digits as its factorization.

144022115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28804428.

The product of its (nonzero) digits is 320, while the sum is 20.

The square root of 144022115 is about 12000.9214229575. The cubic root of 144022115 is about 524.1751097349.

Adding to 144022115 its reverse (511220441), we get a palindrome (655242556).

The spelling of 144022115 in words is "one hundred forty-four million, twenty-two thousand, one hundred fifteen".