320144619 has 4 divisors (see below), whose sum is σ = 426859496. Its totient is φ = 213429744.

The previous prime is 320144579. The next prime is 320144621. The reversal of 320144619 is 916441023.

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

It is not a de Polignac number, because 320144619 - 2¹² = 320140523 is a prime.

It is a super-2 number, since 2×320144619² = 204985154149310322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (320142619) 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, 53357434 + ... + 53357439.

It is an arithmetic number, because the mean of its divisors is an integer number (106714874).

Almost surely, 2^320144619 is an apocalyptic number.

320144619 is a deficient number, since it is larger than the sum of its proper divisors (106714877).

320144619 is a wasteful number, since it uses less digits than its factorization.

320144619 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106714876.

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 320144619 is about 17892.5855873320. The cubic root of 320144619 is about 684.0934027403.

The spelling of 320144619 in words is "three hundred twenty million, one hundred forty-four thousand, six hundred nineteen".