612303312 has 20 divisors (see below), whose sum is σ = 1581783680. Its totient is φ = 204101088.

The previous prime is 612303311. The next prime is 612303313. The reversal of 612303312 is 213303216.

It is an interprime number because it is at equal distance from previous prime (612303311) and next prime (612303313).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (612303311) 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, 6378112 + ... + 6378207.

It is an arithmetic number, because the mean of its divisors is an integer number (79089184).

Almost surely, 2^612303312 is an apocalyptic number.

It is an amenable number.

612303312 is an abundant number, since it is smaller than the sum of its proper divisors (969480368).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

612303312 is a wasteful number, since it uses less digits than its factorization.

612303312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12756330 (or 12756324 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 21.

The square root of 612303312 is about 24744.7633247926. The cubic root of 612303312 is about 849.1587117843.

Adding to 612303312 its reverse (213303216), we get a palindrome (825606528).

The spelling of 612303312 in words is "six hundred twelve million, three hundred three thousand, three hundred twelve".