144561065 has 8 divisors (see below), whose sum is σ = 189243648. Its totient is φ = 105135280.

The previous prime is 144561031. The next prime is 144561071. The reversal of 144561065 is 560165441.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 144561065 - 2²⁰ = 143512489 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1314137 + ... + 1314246.

It is an arithmetic number, because the mean of its divisors is an integer number (23655456).

Almost surely, 2^144561065 is an apocalyptic number.

It is an amenable number.

144561065 is a deficient number, since it is larger than the sum of its proper divisors (44682583).

144561065 is a wasteful number, since it uses less digits than its factorization.

144561065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2628399.

The product of its (nonzero) digits is 14400, while the sum is 32.

The square root of 144561065 is about 12023.3549810359. The cubic root of 144561065 is about 524.8281402706.

The spelling of 144561065 in words is "one hundred forty-four million, five hundred sixty-one thousand, sixty-five".