312323945 has 8 divisors (see below), whose sum is σ = 375099144. Its totient is φ = 249652224.

The previous prime is 312323941. The next prime is 312323953. The reversal of 312323945 is 549323213.

It can be written as a sum of positive squares in 4 ways, for example, as 17205904 + 295118041 = 4148^2 + 17179^2 .

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 312323945 - 2² = 312323941 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (312323941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19064 + ... + 31433.

It is an arithmetic number, because the mean of its divisors is an integer number (46887393).

Almost surely, 2^312323945 is an apocalyptic number.

It is an amenable number.

312323945 is a deficient number, since it is larger than the sum of its proper divisors (62775199).

312323945 is a wasteful number, since it uses less digits than its factorization.

312323945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51739.

The product of its digits is 19440, while the sum is 32.

The square root of 312323945 is about 17672.6892407466. The cubic root of 312323945 is about 678.4769437314.

The spelling of 312323945 in words is "three hundred twelve million, three hundred twenty-three thousand, nine hundred forty-five".