144392 has 8 divisors (see below), whose sum is σ = 270750. Its totient is φ = 72192.

The previous prime is 144383. The next prime is 144407. The reversal of 144392 is 293441.

It can be written as a sum of positive squares in only one way, i.e., 98596 + 45796 = 314^2 + 214^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 144392.

It is an unprimeable number.

144392 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, 9017 + ... + 9032.

2¹⁴⁴³⁹² is an apocalyptic number.

It is an amenable number.

144392 is a deficient number, since it is larger than the sum of its proper divisors (126358).

144392 is a wasteful number, since it uses less digits than its factorization.

144392 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18055 (or 18051 counting only the distinct ones).

The product of its digits is 864, while the sum is 23.

The square root of 144392 is about 379.9894735384. The cubic root of 144392 is about 52.4623463947.

It can be divided in two parts, 14439 and 2, that added together give a palindrome (14441).

The spelling of 144392 in words is "one hundred forty-four thousand, three hundred ninety-two".