312224513 has 8 divisors (see below), whose sum is σ = 313712256. Its totient is φ = 310741200.

The previous prime is 312224501. The next prime is 312224551. The reversal of 312224513 is 315422213.

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 312224513 - 2⁶ = 312224449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (312224593) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 263783 + ... + 264963.

It is an arithmetic number, because the mean of its divisors is an integer number (39214032).

Almost surely, 2^312224513 is an apocalyptic number.

It is an amenable number.

312224513 is a deficient number, since it is larger than the sum of its proper divisors (1487743).

312224513 is a wasteful number, since it uses less digits than its factorization.

312224513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2215.

The product of its digits is 1440, while the sum is 23.

The square root of 312224513 is about 17669.8758626087. The cubic root of 312224513 is about 678.4049357186.

Adding to 312224513 its reverse (315422213), we get a palindrome (627646726).

The spelling of 312224513 in words is "three hundred twelve million, two hundred twenty-four thousand, five hundred thirteen".