144560639 has 8 divisors (see below), whose sum is σ = 153171648. Its totient is φ = 135961600.

The previous prime is 144560623. The next prime is 144560651. The reversal of 144560639 is 936065441.

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

It is a cyclic number.

It is not a de Polignac number, because 144560639 - 2⁴ = 144560623 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144560699) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38159 + ... + 41775.

It is an arithmetic number, because the mean of its divisors is an integer number (19146456).

Almost surely, 2^144560639 is an apocalyptic number.

144560639 is a deficient number, since it is larger than the sum of its proper divisors (8611009).

144560639 is a wasteful number, since it uses less digits than its factorization.

144560639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5985.

The product of its (nonzero) digits is 77760, while the sum is 38.

The square root of 144560639 is about 12023.3372655016. The cubic root of 144560639 is about 524.8276247399.

The spelling of 144560639 in words is "one hundred forty-four million, five hundred sixty thousand, six hundred thirty-nine".