312998313 has 8 divisors (see below), whose sum is σ = 418817376. Its totient is φ = 207922400.

The previous prime is 312998311. The next prime is 312998321. The reversal of 312998313 is 313899213.

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 312998313 - 2¹ = 312998311 is a prime.

It is not an unprimeable number, because it can be changed into a prime (312998311) 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, 184803 + ... + 186488.

It is an arithmetic number, because the mean of its divisors is an integer number (52352172).

Almost surely, 2^312998313 is an apocalyptic number.

It is an amenable number.

312998313 is a deficient number, since it is larger than the sum of its proper divisors (105819063).

312998313 is a wasteful number, since it uses less digits than its factorization.

312998313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 371575.

The product of its digits is 34992, while the sum is 39.

The square root of 312998313 is about 17691.7583354510. The cubic root of 312998313 is about 678.9649138164.

The spelling of 312998313 in words is "three hundred twelve million, nine hundred ninety-eight thousand, three hundred thirteen".