312353243 has 4 divisors (see below), whose sum is σ = 315862920. Its totient is φ = 308843568.

The previous prime is 312353231. The next prime is 312353273. The reversal of 312353243 is 342353213.

It is a happy number.

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 312353243 - 2¹⁸ = 312091099 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (312353273) 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, 1754705 + ... + 1754882.

It is an arithmetic number, because the mean of its divisors is an integer number (78965730).

Almost surely, 2^312353243 is an apocalyptic number.

312353243 is a deficient number, since it is larger than the sum of its proper divisors (3509677).

312353243 is an equidigital number, since it uses as much as digits as its factorization.

312353243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3509676.

The product of its digits is 6480, while the sum is 26.

The square root of 312353243 is about 17673.5181274131. The cubic root of 312353243 is about 678.4981582389.

The spelling of 312353243 in words is "three hundred twelve million, three hundred fifty-three thousand, two hundred forty-three".