144747 has 10 divisors (see below), whose sum is σ = 216348. Its totient is φ = 96444.

The previous prime is 144737. The next prime is 144751. The reversal of 144747 is 747441.

It is not a de Polignac number, because 144747 - 2⁴ = 144731 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

144747 is a lucky number.

It is a plaindrome in base 16.

It is a self number, because there is not a number n which added to its sum of digits gives 144747.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 144747.

It is not an unprimeable number, because it can be changed into a prime (144737) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 813 + ... + 974.

2¹⁴⁴⁷⁴⁷ is an apocalyptic number.

144747 is a deficient number, since it is larger than the sum of its proper divisors (71601).

144747 is an equidigital number, since it uses as much as digits as its factorization.

144747 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1799 (or 1790 counting only the distinct ones).

The product of its digits is 3136, while the sum is 27.

The square root of 144747 is about 380.4563049813. The cubic root of 144747 is about 52.5053055863.

It can be divided in two parts, 14 and 4747, that added together give a square (4761 = 69²).

The spelling of 144747 in words is "one hundred forty-four thousand, seven hundred forty-seven", and thus it is an iban number.