320313152 has 14 divisors (see below), whose sum is σ = 635621538. Its totient is φ = 160156544.

The previous prime is 320313143. The next prime is 320313187. The reversal of 320313152 is 251313023.

320313152 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 308915776 + 11397376 = 17576^2 + 3376^2 .

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 2502383 + ... + 2502510.

Almost surely, 2^320313152 is an apocalyptic number.

320313152 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

320313152 is a deficient number, since it is larger than the sum of its proper divisors (315308386).

320313152 is an equidigital number, since it uses as much as digits as its factorization.

320313152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5004905 (or 5004895 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 20.

The square root of 320313152 is about 17897.2945441483. The cubic root of 320313152 is about 684.2134235908.

Adding to 320313152 its reverse (251313023), we get a palindrome (571626175).

The spelling of 320313152 in words is "three hundred twenty million, three hundred thirteen thousand, one hundred fifty-two".