144379967 has 4 divisors (see below), whose sum is σ = 144979296. Its totient is φ = 143780640.

The previous prime is 144379933. The next prime is 144379981. The reversal of 144379967 is 769973441.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-144379967 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 (144379567) 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, 299303 + ... + 299784.

It is an arithmetic number, because the mean of its divisors is an integer number (36244824).

Almost surely, 2^144379967 is an apocalyptic number.

144379967 is a deficient number, since it is larger than the sum of its proper divisors (599329).

144379967 is an equidigital number, since it uses as much as digits as its factorization.

144379967 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 599328.

The product of its digits is 1143072, while the sum is 50.

The square root of 144379967 is about 12015.8215283018. The cubic root of 144379967 is about 524.6088902640.

The spelling of 144379967 in words is "one hundred forty-four million, three hundred seventy-nine thousand, nine hundred sixty-seven".