144772 has 12 divisors (see below), whose sum is σ = 268380. Its totient is φ = 68096.

The previous prime is 144763. The next prime is 144773. The reversal of 144772 is 277441.

It can be written as a sum of positive squares in 2 ways, for example, as 75076 + 69696 = 274^2 + 264^2 .

It is a nialpdrome in base 11.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 144772.

It is not an unprimeable number, because it can be changed into a prime (144773) by changing a digit.

144772 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 (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 997 + ... + 1132.

It is an arithmetic number, because the mean of its divisors is an integer number (22365).

2¹⁴⁴⁷⁷² is an apocalyptic number.

It is an amenable number.

144772 is a deficient number, since it is larger than the sum of its proper divisors (123608).

144772 is a wasteful number, since it uses less digits than its factorization.

144772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2150 (or 2148 counting only the distinct ones).

The product of its digits is 1568, while the sum is 25.

The square root of 144772 is about 380.4891588469. The cubic root of 144772 is about 52.5083282328.

The spelling of 144772 in words is "one hundred forty-four thousand, seven hundred seventy-two", and thus it is an iban number.