144907478 has 8 divisors (see below), whose sum is σ = 217967760. Its totient is φ = 72251560.

The previous prime is 144907457. The next prime is 144907501. The reversal of 144907478 is 874709441.

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

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 100193 + ... + 101628.

It is an arithmetic number, because the mean of its divisors is an integer number (27245970).

Almost surely, 2^144907478 is an apocalyptic number.

144907478 is a deficient number, since it is larger than the sum of its proper divisors (73060282).

144907478 is a wasteful number, since it uses less digits than its factorization.

144907478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202182.

The product of its (nonzero) digits is 225792, while the sum is 44.

The square root of 144907478 is about 12037.7521988119. The cubic root of 144907478 is about 525.2470226795.

The spelling of 144907478 in words is "one hundred forty-four million, nine hundred seven thousand, four hundred seventy-eight".