144982309 has 4 divisors (see below), whose sum is σ = 145129600. Its totient is φ = 144835020.

The previous prime is 144982261. The next prime is 144982337. The reversal of 144982309 is 903289441.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 144982309 - 2¹¹ = 144980261 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 (144982379) 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, 72159 + ... + 74140.

It is an arithmetic number, because the mean of its divisors is an integer number (36282400).

Almost surely, 2^144982309 is an apocalyptic number.

It is an amenable number.

144982309 is a deficient number, since it is larger than the sum of its proper divisors (147291).

144982309 is an equidigital number, since it uses as much as digits as its factorization.

144982309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147290.

The product of its (nonzero) digits is 62208, while the sum is 40.

The square root of 144982309 is about 12040.8599775930. The cubic root of 144982309 is about 525.3374205819.

It can be divided in two parts, 14498 and 2309, that added together give a 5-th power (16807 = 7⁵).

The spelling of 144982309 in words is "one hundred forty-four million, nine hundred eighty-two thousand, three hundred nine".