144930239 has 4 divisors (see below), whose sum is σ = 149605440. Its totient is φ = 140255040.

The previous prime is 144930229. The next prime is 144930251. The reversal of 144930239 is 932039441.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 144930239 - 2⁴ = 144930223 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 144930199 and 144930208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144930209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2337554 + ... + 2337615.

It is an arithmetic number, because the mean of its divisors is an integer number (37401360).

Almost surely, 2^144930239 is an apocalyptic number.

144930239 is a deficient number, since it is larger than the sum of its proper divisors (4675201).

144930239 is an equidigital number, since it uses as much as digits as its factorization.

144930239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4675200.

The product of its (nonzero) digits is 23328, while the sum is 35.

The square root of 144930239 is about 12038.6975624442. The cubic root of 144930239 is about 525.2745218851.

The spelling of 144930239 in words is "one hundred forty-four million, nine hundred thirty thousand, two hundred thirty-nine".