312422543 has 2 divisors, whose sum is σ = 312422544. Its totient is φ = 312422542.

The previous prime is 312422531. The next prime is 312422573. The reversal of 312422543 is 345224213.

It is a weak prime.

It is an emirp because it is prime and its reverse (345224213) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 312422543 - 2⁴ = 312422527 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (312422573) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156211271 + 156211272.

It is an arithmetic number, because the mean of its divisors is an integer number (156211272).

Almost surely, 2^312422543 is an apocalyptic number.

312422543 is a deficient number, since it is larger than the sum of its proper divisors (1).

312422543 is an equidigital number, since it uses as much as digits as its factorization.

312422543 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5760, while the sum is 26.

The square root of 312422543 is about 17675.4785790937. The cubic root of 312422543 is about 678.5483326770.

Adding to 312422543 its reverse (345224213), we get a palindrome (657646756).

The spelling of 312422543 in words is "three hundred twelve million, four hundred twenty-two thousand, five hundred forty-three".