144022442 has 4 divisors (see below), whose sum is σ = 216033666. Its totient is φ = 72011220.

The previous prime is 144022427. The next prime is 144022457. The reversal of 144022442 is 244220441.

144022442 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 244220441 = 313 ⋅780257.

It is an interprime number because it is at equal distance from previous prime (144022427) and next prime (144022457).

It can be written as a sum of positive squares in only one way, i.e., 112763161 + 31259281 = 10619^2 + 5591^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36005609 + ... + 36005612.

Almost surely, 2^144022442 is an apocalyptic number.

144022442 is a deficient number, since it is larger than the sum of its proper divisors (72011224).

144022442 is an equidigital number, since it uses as much as digits as its factorization.

144022442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72011223.

The product of its (nonzero) digits is 2048, while the sum is 23.

The square root of 144022442 is about 12000.9350469036. The cubic root of 144022442 is about 524.1755064451.

Adding to 144022442 its reverse (244220441), we get a palindrome (388242883).

The spelling of 144022442 in words is "one hundred forty-four million, twenty-two thousand, four hundred forty-two".