144644852 has 18 divisors (see below), whose sum is σ = 278233074. Its totient is φ = 65747440.

The previous prime is 144644849. The next prime is 144644909. The reversal of 144644852 is 258446441.

It can be written as a sum of positive squares in only one way, i.e., 140090896 + 4553956 = 11836^2 + 2134^2 .

It is a congruent 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, 148943 + ... + 149910.

It is an arithmetic number, because the mean of its divisors is an integer number (15457393).

Almost surely, 2^144644852 is an apocalyptic number.

It is an amenable number.

144644852 is a deficient number, since it is larger than the sum of its proper divisors (133588222).

144644852 is a wasteful number, since it uses less digits than its factorization.

144644852 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 298879 (or 298866 counting only the distinct ones).

The product of its digits is 122880, while the sum is 38.

The square root of 144644852 is about 12026.8388199061. The cubic root of 144644852 is about 524.9295167661.

The spelling of 144644852 in words is "one hundred forty-four million, six hundred forty-four thousand, eight hundred fifty-two".