144875478 has 48 divisors (see below), whose sum is σ = 319915008. Its totient is φ = 43705200.

The previous prime is 144875473. The next prime is 144875491. The reversal of 144875478 is 874578441.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144875473) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 312675 + ... + 313137.

It is an arithmetic number, because the mean of its divisors is an integer number (6664896).

Almost surely, 2^144875478 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 144875478, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (159957504).

144875478 is an abundant number, since it is smaller than the sum of its proper divisors (175039530).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

144875478 is a wasteful number, since it uses less digits than its factorization.

144875478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 921 (or 910 counting only the distinct ones).

The product of its digits is 1003520, while the sum is 48.

The square root of 144875478 is about 12036.4229736247. The cubic root of 144875478 is about 525.2083563011.

The spelling of 144875478 in words is "one hundred forty-four million, eight hundred seventy-five thousand, four hundred seventy-eight".