144643199 has 8 divisors (see below), whose sum is σ = 146480208. Its totient is φ = 142813440.

The previous prime is 144643189. The next prime is 144643223. The reversal of 144643199 is 991346441.

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 144643199 - 2²⁰ = 143594623 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144643129) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46109 + ... + 49145.

It is an arithmetic number, because the mean of its divisors is an integer number (18310026).

Almost surely, 2^144643199 is an apocalyptic number.

144643199 is a deficient number, since it is larger than the sum of its proper divisors (1837009).

144643199 is an equidigital number, since it uses as much as digits as its factorization.

144643199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3625.

The product of its digits is 93312, while the sum is 41.

The square root of 144643199 is about 12026.7700984096. The cubic root of 144643199 is about 524.9275171286.

The spelling of 144643199 in words is "one hundred forty-four million, six hundred forty-three thousand, one hundred ninety-nine".