312314291 has 4 divisors (see below), whose sum is σ = 314303712. Its totient is φ = 310324872.

The previous prime is 312314287. The next prime is 312314323. The reversal of 312314291 is 192413213.

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

It is a cyclic number.

It is not a de Polignac number, because 312314291 - 2² = 312314287 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 312314291.

It is not an unprimeable number, because it can be changed into a prime (312314591) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 994475 + ... + 994788.

It is an arithmetic number, because the mean of its divisors is an integer number (78575928).

Almost surely, 2^312314291 is an apocalyptic number.

312314291 is a deficient number, since it is larger than the sum of its proper divisors (1989421).

312314291 is a wasteful number, since it uses less digits than its factorization.

312314291 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1989420.

The product of its digits is 1296, while the sum is 26.

The square root of 312314291 is about 17672.4161053321. The cubic root of 312314291 is about 678.4699530369.

The spelling of 312314291 in words is "three hundred twelve million, three hundred fourteen thousand, two hundred ninety-one".