144403065 has 12 divisors (see below), whose sum is σ = 250298724. Its totient is φ = 77014944.

The previous prime is 144403057. The next prime is 144403087. The reversal of 144403065 is 560304441.

It can be written as a sum of positive squares in 2 ways, for example, as 48108096 + 96294969 = 6936^2 + 9813^2 .

It is not a de Polignac number, because 144403065 - 2³ = 144403057 is a prime.

It is a super-3 number, since 3×144403065³ (a number of 25 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1604434 + ... + 1604523.

It is an arithmetic number, because the mean of its divisors is an integer number (20858227).

Almost surely, 2^144403065 is an apocalyptic number.

144403065 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

144403065 is a deficient number, since it is larger than the sum of its proper divisors (105895659).

144403065 is a wasteful number, since it uses less digits than its factorization.

144403065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3208968 (or 3208965 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

The square root of 144403065 is about 12016.7826392924. The cubic root of 144403065 is about 524.6368645282.

The spelling of 144403065 in words is "one hundred forty-four million, four hundred three thousand, sixty-five".