144217018 has 16 divisors (see below), whose sum is σ = 249873984. Its totient is φ = 61696960.

The previous prime is 144216979. The next prime is 144217019. The reversal of 144217018 is 810712441.

It is a super-3 number, since 3×144217018³ (a number of 25 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (144217019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 192430 + ... + 193177.

It is an arithmetic number, because the mean of its divisors is an integer number (15617124).

Almost surely, 2^144217018 is an apocalyptic number.

144217018 is a deficient number, since it is larger than the sum of its proper divisors (105656966).

144217018 is a wasteful number, since it uses less digits than its factorization.

144217018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 385637.

The product of its (nonzero) digits is 1792, while the sum is 28.

The square root of 144217018 is about 12009.0390123440. The cubic root of 144217018 is about 524.4114559624.

Adding to 144217018 its reverse (810712441), we get a palindrome (954929459).

The spelling of 144217018 in words is "one hundred forty-four million, two hundred seventeen thousand, eighteen".