144773228 has 6 divisors (see below), whose sum is σ = 253353156. Its totient is φ = 72386612.

The previous prime is 144773203. The next prime is 144773257. The reversal of 144773228 is 822377441.

It is a junction number, because it is equal to n+sod(n) for n = 144773191 and 144773200.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18096650 + ... + 18096657.

It is an arithmetic number, because the mean of its divisors is an integer number (42225526).

Almost surely, 2^144773228 is an apocalyptic number.

It is an amenable number.

144773228 is a deficient number, since it is larger than the sum of its proper divisors (108579928).

144773228 is a wasteful number, since it uses less digits than its factorization.

144773228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36193311 (or 36193309 counting only the distinct ones).

The product of its digits is 75264, while the sum is 38.

The square root of 144773228 is about 12032.1746995296. The cubic root of 144773228 is about 525.0847669628.

The spelling of 144773228 in words is "one hundred forty-four million, seven hundred seventy-three thousand, two hundred twenty-eight".