144769 has 4 divisors (see below), whose sum is σ = 146880. Its totient is φ = 142660.

The previous prime is 144763. The next prime is 144773. The reversal of 144769 is 967441.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 144769 - 2⁵ = 144737 is a prime.

It is a super-2 number, since 2×144769² = 41916126722, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 144769.

It is not an unprimeable number, because it can be changed into a prime (144763) by changing a digit.

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, 949 + ... + 1090.

It is an arithmetic number, because the mean of its divisors is an integer number (36720).

2¹⁴⁴⁷⁶⁹ is an apocalyptic number.

It is an amenable number.

144769 is a deficient number, since it is larger than the sum of its proper divisors (2111).

144769 is an equidigital number, since it uses as much as digits as its factorization.

144769 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2110.

The product of its digits is 6048, while the sum is 31.

The square root of 144769 is about 380.4852165328. The cubic root of 144769 is about 52.5079655336.

It can be divided in two parts, 14 and 4769, that multiplied together give a palindrome (66766).

The spelling of 144769 in words is "one hundred forty-four thousand, seven hundred sixty-nine".