312223441 has 4 divisors (see below), whose sum is σ = 312370084. Its totient is φ = 312076800.

The previous prime is 312223399. The next prime is 312223493. The reversal of 312223441 is 144322213.

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 275062225 + 37161216 = 16585^2 + 6096^2 .

It is a cyclic number.

It is not a de Polignac number, because 312223441 - 2⁹ = 312222929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (312223141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 70080 + ... + 74401.

It is an arithmetic number, because the mean of its divisors is an integer number (78092521).

Almost surely, 2^312223441 is an apocalyptic number.

It is an amenable number.

312223441 is a deficient number, since it is larger than the sum of its proper divisors (146643).

312223441 is a wasteful number, since it uses less digits than its factorization.

312223441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146642.

The product of its digits is 1152, while the sum is 22.

The square root of 312223441 is about 17669.8455284702. The cubic root of 312223441 is about 678.4041592999.

Adding to 312223441 its reverse (144322213), we get a palindrome (456545654).

The spelling of 312223441 in words is "three hundred twelve million, two hundred twenty-three thousand, four hundred forty-one".