144747239 has 16 divisors (see below), whose sum is σ = 179891712. Its totient is φ = 113406048.

The previous prime is 144747221. The next prime is 144747259. The reversal of 144747239 is 932747441.

It is not a de Polignac number, because 144747239 - 2¹² = 144743143 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 144747196 and 144747205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144747209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1652 + ... + 17094.

It is an arithmetic number, because the mean of its divisors is an integer number (11243232).

Almost surely, 2^144747239 is an apocalyptic number.

144747239 is a deficient number, since it is larger than the sum of its proper divisors (35144473).

144747239 is a wasteful number, since it uses less digits than its factorization.

144747239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15566.

The product of its digits is 169344, while the sum is 41.

The square root of 144747239 is about 12031.0946717246. The cubic root of 144747239 is about 525.0533448440.

The spelling of 144747239 in words is "one hundred forty-four million, seven hundred forty-seven thousand, two hundred thirty-nine".