144519979 has 4 divisors (see below), whose sum is σ = 144545680. Its totient is φ = 144494280.

The previous prime is 144519937. The next prime is 144519989. The reversal of 144519979 is 979915441.

144519979 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: 979915441 = 613 ⋅1598557.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-144519979 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (144519989) 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, 384 + ... + 17005.

It is an arithmetic number, because the mean of its divisors is an integer number (36136420).

Almost surely, 2^144519979 is an apocalyptic number.

144519979 is a deficient number, since it is larger than the sum of its proper divisors (25701).

144519979 is an equidigital number, since it uses as much as digits as its factorization.

144519979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25700.

The product of its digits is 408240, while the sum is 49.

The square root of 144519979 is about 12021.6462682945. The cubic root of 144519979 is about 524.7784147281.

The spelling of 144519979 in words is "one hundred forty-four million, five hundred nineteen thousand, nine hundred seventy-nine".