144222979 has 4 divisors (see below), whose sum is σ = 144291880. Its totient is φ = 144154080.

The previous prime is 144222973. The next prime is 144222997. The reversal of 144222979 is 979222441.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 979222441 = 21059 ⋅46499.

It is a cyclic number.

It is not a de Polignac number, because 144222979 - 2²⁷ = 10005251 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (144222973) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31209 + ... + 35530.

It is an arithmetic number, because the mean of its divisors is an integer number (36072970).

Almost surely, 2^144222979 is an apocalyptic number.

144222979 is a deficient number, since it is larger than the sum of its proper divisors (68901).

144222979 is an equidigital number, since it uses as much as digits as its factorization.

144222979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68900.

The product of its digits is 72576, while the sum is 40.

The square root of 144222979 is about 12009.2871978315. The cubic root of 144222979 is about 524.4186811237.

The spelling of 144222979 in words is "one hundred forty-four million, two hundred twenty-two thousand, nine hundred seventy-nine".