144788365 has 4 divisors (see below), whose sum is σ = 173746044. Its totient is φ = 115830688.

The previous prime is 144788359. The next prime is 144788393. The reversal of 144788365 is 563887441.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 563887441 = 13 ⋅43375957.

It can be written as a sum of positive squares in 2 ways, for example, as 66536649 + 78251716 = 8157^2 + 8846^2 .

It is a cyclic number.

It is not a de Polignac number, because 144788365 - 2⁵ = 144788333 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14478832 + ... + 14478841.

It is an arithmetic number, because the mean of its divisors is an integer number (43436511).

Almost surely, 2^144788365 is an apocalyptic number.

It is an amenable number.

144788365 is a deficient number, since it is larger than the sum of its proper divisors (28957679).

144788365 is an equidigital number, since it uses as much as digits as its factorization.

144788365 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28957678.

The product of its digits is 645120, while the sum is 46.

The square root of 144788365 is about 12032.8037048728. The cubic root of 144788365 is about 525.1030666885.

The spelling of 144788365 in words is "one hundred forty-four million, seven hundred eighty-eight thousand, three hundred sixty-five".