144429899 has 16 divisors (see below), whose sum is σ = 152024064. Its totient is φ = 137052000.

The previous prime is 144429893. The next prime is 144429913. The reversal of 144429899 is 998924441.

It is a cyclic number.

It is not a de Polignac number, because 144429899 - 2⁸ = 144429643 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (144429893) 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, 510212 + ... + 510494.

It is an arithmetic number, because the mean of its divisors is an integer number (9501504).

Almost surely, 2^144429899 is an apocalyptic number.

144429899 is a deficient number, since it is larger than the sum of its proper divisors (7594165).

144429899 is a wasteful number, since it uses less digits than its factorization.

144429899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 578.

The product of its digits is 746496, while the sum is 50.

The square root of 144429899 is about 12017.8991092453. The cubic root of 144429899 is about 524.6693597611.

The spelling of 144429899 in words is "one hundred forty-four million, four hundred twenty-nine thousand, eight hundred ninety-nine".