144478825 has 6 divisors (see below), whose sum is σ = 179153774. Its totient is φ = 115583040.

The previous prime is 144478819. The next prime is 144478837. The reversal of 144478825 is 528874441.

It can be written as a sum of positive squares in 3 ways, for example, as 670761 + 143808064 = 819^2 + 11992^2 .

It is a de Polignac number, because none of the positive numbers 2^k-144478825 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2889552 + ... + 2889601.

Almost surely, 2^144478825 is an apocalyptic number.

It is an amenable number.

144478825 is a deficient number, since it is larger than the sum of its proper divisors (34674949).

144478825 is an equidigital number, since it uses as much as digits as its factorization.

144478825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5779163 (or 5779158 counting only the distinct ones).

The product of its digits is 286720, while the sum is 43.

The square root of 144478825 is about 12019.9344840145. The cubic root of 144478825 is about 524.7285974380.

The spelling of 144478825 in words is "one hundred forty-four million, four hundred seventy-eight thousand, eight hundred twenty-five".