144220354 has 4 divisors (see below), whose sum is σ = 216330534. Its totient is φ = 72110176.

The previous prime is 144220343. The next prime is 144220361. The reversal of 144220354 is 453022441.

It is a happy number.

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

It can be written as a sum of positive squares in only one way, i.e., 136352329 + 7868025 = 11677^2 + 2805^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36055087 + ... + 36055090.

Almost surely, 2^144220354 is an apocalyptic number.

144220354 is a deficient number, since it is larger than the sum of its proper divisors (72110180).

144220354 is an equidigital number, since it uses as much as digits as its factorization.

144220354 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72110179.

The product of its (nonzero) digits is 3840, while the sum is 25.

The square root of 144220354 is about 12009.1779069177. The cubic root of 144220354 is about 524.4154994592.

Adding to 144220354 its reverse (453022441), we get a palindrome (597242795).

The spelling of 144220354 in words is "one hundred forty-four million, two hundred twenty thousand, three hundred fifty-four".