312282349 has 4 divisors (see below), whose sum is σ = 312337564. Its totient is φ = 312227136.

The previous prime is 312282323. The next prime is 312282361. The reversal of 312282349 is 943282213.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 42994249 + 269288100 = 6557^2 + 16410^2 .

It is a cyclic number.

It is not a de Polignac number, because 312282349 - 2¹¹ = 312280301 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312282049) 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, 18012 + ... + 30805.

It is an arithmetic number, because the mean of its divisors is an integer number (78084391).

Almost surely, 2^312282349 is an apocalyptic number.

It is an amenable number.

312282349 is a deficient number, since it is larger than the sum of its proper divisors (55215).

312282349 is an equidigital number, since it uses as much as digits as its factorization.

312282349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55214.

The product of its digits is 20736, while the sum is 34.

The square root of 312282349 is about 17671.5123574639. The cubic root of 312282349 is about 678.4468220363.

The spelling of 312282349 in words is "three hundred twelve million, two hundred eighty-two thousand, three hundred forty-nine".