144618478 has 8 divisors (see below), whose sum is σ = 216988272. Its totient is φ = 72289056.

The previous prime is 144618469. The next prime is 144618479. The reversal of 144618478 is 874816441.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144618479) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1551 + ... + 17077.

It is an arithmetic number, because the mean of its divisors is an integer number (27123534).

Almost surely, 2^144618478 is an apocalyptic number.

144618478 is a deficient number, since it is larger than the sum of its proper divisors (72369794).

144618478 is a wasteful number, since it uses less digits than its factorization.

144618478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20186.

The product of its digits is 172032, while the sum is 43.

The square root of 144618478 is about 12025.7423055710. The cubic root of 144618478 is about 524.8976102667.

The spelling of 144618478 in words is "one hundred forty-four million, six hundred eighteen thousand, four hundred seventy-eight".