312226241 has 2 divisors, whose sum is σ = 312226242. Its totient is φ = 312226240.

The previous prime is 312226237. The next prime is 312226247. The reversal of 312226241 is 142622213.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 198697216 + 113529025 = 14096^2 + 10655^2 .

It is an emirp because it is prime and its reverse (142622213) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 312226241 - 2² = 312226237 is a prime.

It is not a weakly prime, because it can be changed into another prime (312226247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156113120 + 156113121.

It is an arithmetic number, because the mean of its divisors is an integer number (156113121).

Almost surely, 2^312226241 is an apocalyptic number.

It is an amenable number.

312226241 is a deficient number, since it is larger than the sum of its proper divisors (1).

312226241 is an equidigital number, since it uses as much as digits as its factorization.

312226241 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1152, while the sum is 23.

The square root of 312226241 is about 17669.9247593192. The cubic root of 312226241 is about 678.4061872556.

Adding to 312226241 its reverse (142622213), we get a palindrome (454848454).

The spelling of 312226241 in words is "three hundred twelve million, two hundred twenty-six thousand, two hundred forty-one".