144239799 has 16 divisors (see below), whose sum is σ = 210182400. Its totient is φ = 87260160.

The previous prime is 144239791. The next prime is 144239813. The reversal of 144239799 is 997932441.

It is a happy number.

It is not a de Polignac number, because 144239799 - 2³ = 144239791 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144239791) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16119 + ... + 23415.

It is an arithmetic number, because the mean of its divisors is an integer number (13136400).

Almost surely, 2^144239799 is an apocalyptic number.

144239799 is a deficient number, since it is larger than the sum of its proper divisors (65942601).

144239799 is a wasteful number, since it uses less digits than its factorization.

144239799 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7910.

The product of its digits is 489888, while the sum is 48.

The square root of 144239799 is about 12009.9874687695. The cubic root of 144239799 is about 524.4390671014.

The spelling of 144239799 in words is "one hundred forty-four million, two hundred thirty-nine thousand, seven hundred ninety-nine".