144388 has 6 divisors (see below), whose sum is σ = 252686. Its totient is φ = 72192.

The previous prime is 144383. The next prime is 144407. The reversal of 144388 is 883441.

It can be written as a sum of positive squares in only one way, i.e., 101124 + 43264 = 318^2 + 208^2 .

It is a nialpdrome in base 11.

It is not an unprimeable number, because it can be changed into a prime (144383) by changing a digit.

144388 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18045 + ... + 18052.

2¹⁴⁴³⁸⁸ is an apocalyptic number.

It is an amenable number.

144388 is a deficient number, since it is larger than the sum of its proper divisors (108298).

144388 is a wasteful number, since it uses less digits than its factorization.

144388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36101 (or 36099 counting only the distinct ones).

The product of its digits is 3072, while the sum is 28.

The square root of 144388 is about 379.9842101983. The cubic root of 144388 is about 52.4618619465.

The spelling of 144388 in words is "one hundred forty-four thousand, three hundred eighty-eight".