144285727 has 4 divisors (see below), whose sum is σ = 144313056. Its totient is φ = 144258400.

The previous prime is 144285719. The next prime is 144285731. The reversal of 144285727 is 727582441.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 727582441 = 61 ⋅11927581.

It is a cyclic number.

It is not a de Polignac number, because 144285727 - 2³ = 144285719 is a prime.

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 144285727.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144285737) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2938 + ... + 17239.

It is an arithmetic number, because the mean of its divisors is an integer number (36078264).

Almost surely, 2^144285727 is an apocalyptic number.

144285727 is a deficient number, since it is larger than the sum of its proper divisors (27329).

144285727 is an equidigital number, since it uses as much as digits as its factorization.

144285727 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27328.

The product of its digits is 125440, while the sum is 40.

The square root of 144285727 is about 12011.8993918531. The cubic root of 144285727 is about 524.4947241429.

The spelling of 144285727 in words is "one hundred forty-four million, two hundred eighty-five thousand, seven hundred twenty-seven".