320312481 has 8 divisors (see below), whose sum is σ = 428011584. Its totient is φ = 213077520.

The previous prime is 320312477. The next prime is 320312533. The reversal of 320312481 is 184213023.

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

It is not a de Polignac number, because 320312481 - 2² = 320312477 is a prime.

It is a super-2 number, since 2×320312481² = 205200170968750722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (320312401) 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 7 ways as a sum of consecutive naturals, for example, 114421 + ... + 117186.

It is an arithmetic number, because the mean of its divisors is an integer number (53501448).

Almost surely, 2^320312481 is an apocalyptic number.

It is an amenable number.

320312481 is a deficient number, since it is larger than the sum of its proper divisors (107699103).

320312481 is a wasteful number, since it uses less digits than its factorization.

320312481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 232071.

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 320312481 is about 17897.2757982884. The cubic root of 320312481 is about 684.2129458213.

The spelling of 320312481 in words is "three hundred twenty million, three hundred twelve thousand, four hundred eighty-one".