144820799 has 4 divisors (see below), whose sum is σ = 144909240. Its totient is φ = 144732360.

The previous prime is 144820789. The next prime is 144820813. The reversal of 144820799 is 997028441.

144820799 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 997028441 = 479 ⋅2081479.

It is a cyclic number.

It is not a de Polignac number, because 144820799 - 2⁴ = 144820783 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 (144820729) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41717 + ... + 45054.

It is an arithmetic number, because the mean of its divisors is an integer number (36227310).

Almost surely, 2^144820799 is an apocalyptic number.

144820799 is a deficient number, since it is larger than the sum of its proper divisors (88441).

144820799 is an equidigital number, since it uses as much as digits as its factorization.

144820799 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88440.

The product of its (nonzero) digits is 145152, while the sum is 44.

The square root of 144820799 is about 12034.1513618535. The cubic root of 144820799 is about 525.1422731568.

The spelling of 144820799 in words is "one hundred forty-four million, eight hundred twenty thousand, seven hundred ninety-nine".