144623218 has 16 divisors (see below), whose sum is σ = 226949760. Its totient is φ = 68989536.

The previous prime is 144623207. The next prime is 144623239. The reversal of 144623218 is 812326441.

144623218 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 144623218.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14971 + ... + 22657.

It is an arithmetic number, because the mean of its divisors is an integer number (14184360).

Almost surely, 2^144623218 is an apocalyptic number.

144623218 is a deficient number, since it is larger than the sum of its proper divisors (82326542).

144623218 is a wasteful number, since it uses less digits than its factorization.

144623218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8121.

The product of its digits is 9216, while the sum is 31.

The square root of 144623218 is about 12025.9393811877. The cubic root of 144623218 is about 524.9033448670.

Adding to 144623218 its reverse (812326441), we get a palindrome (956949659).

The spelling of 144623218 in words is "one hundred forty-four million, six hundred twenty-three thousand, two hundred eighteen".