312242243 has 8 divisors (see below), whose sum is σ = 317799216. Its totient is φ = 306720000.

The previous prime is 312242237. The next prime is 312242263. The reversal of 312242243 is 342242213.

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 312242243 - 2¹⁰ = 312241219 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (312242263) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9803 + ... + 26843.

It is an arithmetic number, because the mean of its divisors is an integer number (39724902).

Almost surely, 2^312242243 is an apocalyptic number.

312242243 is a deficient number, since it is larger than the sum of its proper divisors (5556973).

312242243 is a wasteful number, since it uses less digits than its factorization.

312242243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17365.

The product of its digits is 2304, while the sum is 23.

The square root of 312242243 is about 17670.3775568039. The cubic root of 312242243 is about 678.4177767901.

Adding to 312242243 its reverse (342242213), we get a palindrome (654484456).

The spelling of 312242243 in words is "three hundred twelve million, two hundred forty-two thousand, two hundred forty-three".