144764 has 6 divisors (see below), whose sum is σ = 253344. Its totient is φ = 72380.

The previous prime is 144763. The next prime is 144773. The reversal of 144764 is 467441.

144764 = 131² + 132² + ... + 138².

It is a plaindrome in base 16.

It is a nialpdrome in base 11.

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 144764.

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

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18092 + ... + 18099.

It is an arithmetic number, because the mean of its divisors is an integer number (42224).

2¹⁴⁴⁷⁶⁴ is an apocalyptic number.

It is an amenable number.

144764 is a deficient number, since it is larger than the sum of its proper divisors (108580).

144764 is a wasteful number, since it uses less digits than its factorization.

144764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36195 (or 36193 counting only the distinct ones).

The product of its digits is 2688, while the sum is 26.

The square root of 144764 is about 380.4786459185. The cubic root of 144764 is about 52.5073610238.

The spelling of 144764 in words is "one hundred forty-four thousand, seven hundred sixty-four".