144224818 has 4 divisors (see below), whose sum is σ = 216337230. Its totient is φ = 72112408.

The previous prime is 144224813. The next prime is 144224827. The reversal of 144224818 is 818422441.

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., 105945849 + 38278969 = 10293^2 + 6187^2 .

It is not an unprimeable number, because it can be changed into a prime (144224813) 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 as a sum of consecutive naturals, namely, 36056203 + ... + 36056206.

Almost surely, 2^144224818 is an apocalyptic number.

144224818 is a deficient number, since it is larger than the sum of its proper divisors (72112412).

144224818 is an equidigital number, since it uses as much as digits as its factorization.

144224818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72112411.

The product of its digits is 16384, while the sum is 34.

The square root of 144224818 is about 12009.3637633307. The cubic root of 144224818 is about 524.4209100839.

The spelling of 144224818 in words is "one hundred forty-four million, two hundred twenty-four thousand, eight hundred eighteen".