144449299 has 4 divisors (see below), whose sum is σ = 146189736. Its totient is φ = 142708864.

The previous prime is 144449297. The next prime is 144449309. The reversal of 144449299 is 992944441.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 992944441 = 151 ⋅6575791.

It is a cyclic number.

It is not a de Polignac number, because 144449299 - 2¹ = 144449297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (144449297) 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 3 ways as a sum of consecutive naturals, for example, 870094 + ... + 870259.

It is an arithmetic number, because the mean of its divisors is an integer number (36547434).

Almost surely, 2^144449299 is an apocalyptic number.

144449299 is a deficient number, since it is larger than the sum of its proper divisors (1740437).

144449299 is an equidigital number, since it uses as much as digits as its factorization.

144449299 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1740436.

The product of its digits is 373248, while the sum is 46.

The square root of 144449299 is about 12018.7062115687. The cubic root of 144449299 is about 524.6928501186.

The spelling of 144449299 in words is "one hundred forty-four million, four hundred forty-nine thousand, two hundred ninety-nine".