144120418 has 24 divisors (see below), whose sum is σ = 235471068. Its totient is φ = 65763168.

The previous prime is 144120413. The next prime is 144120433. The reversal of 144120418 is 814021441.

It can be written as a sum of positive squares in 2 ways, for example, as 143832049 + 288369 = 11993^2 + 537^2 .

It is a junction number, because it is equal to n+sod(n) for n = 144120392 and 144120401.

It is not an unprimeable number, because it can be changed into a prime (144120413) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 805053 + ... + 805231.

Almost surely, 2^144120418 is an apocalyptic number.

144120418 is a deficient number, since it is larger than the sum of its proper divisors (91350650).

144120418 is a wasteful number, since it uses less digits than its factorization.

144120418 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 546 (or 367 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 25.

The square root of 144120418 is about 12005.0163681688. The cubic root of 144120418 is about 524.2943420410.

Adding to 144120418 its reverse (814021441), we get a palindrome (958141859).

The spelling of 144120418 in words is "one hundred forty-four million, one hundred twenty thousand, four hundred eighteen".