144719639 has 8 divisors (see below), whose sum is σ = 148401792. Its totient is φ = 141051960.

The previous prime is 144719609. The next prime is 144719647. The reversal of 144719639 is 936917441.

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 144719639 - 2⁸ = 144719383 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 144719639.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144719609) 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 7 ways as a sum of consecutive naturals, for example, 18284 + ... + 24974.

It is an arithmetic number, because the mean of its divisors is an integer number (18550224).

Almost surely, 2^144719639 is an apocalyptic number.

144719639 is a deficient number, since it is larger than the sum of its proper divisors (3682153).

144719639 is an equidigital number, since it uses as much as digits as its factorization.

144719639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7237.

The product of its digits is 163296, while the sum is 44.

The square root of 144719639 is about 12029.9475892458. The cubic root of 144719639 is about 525.0199708201.

The spelling of 144719639 in words is "one hundred forty-four million, seven hundred nineteen thousand, six hundred thirty-nine".