144420319 has 8 divisors (see below), whose sum is σ = 151506720. Its totient is φ = 137474400.

The previous prime is 144420307. The next prime is 144420329. The reversal of 144420319 is 913024441.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 144420319 - 2⁷ = 144420191 is a prime.

It is a super-2 number, since 2×144420319² = 41714457080123522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144420329) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33012 + ... + 37129.

It is an arithmetic number, because the mean of its divisors is an integer number (18938340).

Almost surely, 2^144420319 is an apocalyptic number.

144420319 is a deficient number, since it is larger than the sum of its proper divisors (7086401).

144420319 is an equidigital number, since it uses as much as digits as its factorization.

144420319 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70241.

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 144420319 is about 12017.5005304764. The cubic root of 144420319 is about 524.6577591077.

The spelling of 144420319 in words is "one hundred forty-four million, four hundred twenty thousand, three hundred nineteen".