144917479 has 4 divisors (see below), whose sum is σ = 165619984. Its totient is φ = 124214976.

The previous prime is 144917477. The next prime is 144917489. The reversal of 144917479 is 974719441.

It is a happy number.

144917479 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.

It is a cyclic number.

It is not a de Polignac number, because 144917479 - 2¹ = 144917477 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 (144917477) 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, 10351242 + ... + 10351255.

It is an arithmetic number, because the mean of its divisors is an integer number (41404996).

Almost surely, 2^144917479 is an apocalyptic number.

144917479 is a deficient number, since it is larger than the sum of its proper divisors (20702505).

144917479 is an equidigital number, since it uses as much as digits as its factorization.

144917479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20702504.

The product of its digits is 254016, while the sum is 46.

The square root of 144917479 is about 12038.1675931181. The cubic root of 144917479 is about 525.2591059635.

It can be divided in two parts, 1449174 and 79, that added together give a triangular number (1449253 = T₁₇₀₂).

The spelling of 144917479 in words is "one hundred forty-four million, nine hundred seventeen thousand, four hundred seventy-nine".