312227156 has 12 divisors (see below), whose sum is σ = 549878868. Its totient is φ = 155118912.

The previous prime is 312227129. The next prime is 312227161. The reversal of 312227156 is 651722213.

It is a happy number.

312227156 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 210540100 + 101687056 = 14510^2 + 10084^2 .

It is a congruent number.

It is an unprimeable number.

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, 247961 + ... + 249216.

It is an arithmetic number, because the mean of its divisors is an integer number (45823239).

Almost surely, 2^312227156 is an apocalyptic number.

It is an amenable number.

312227156 is a deficient number, since it is larger than the sum of its proper divisors (237651712).

312227156 is a wasteful number, since it uses less digits than its factorization.

312227156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 497338 (or 497336 counting only the distinct ones).

The product of its digits is 5040, while the sum is 29.

The square root of 312227156 is about 17669.9506507517. The cubic root of 312227156 is about 678.4068499599.

Adding to 312227156 its reverse (651722213), we get a palindrome (963949369).

The spelling of 312227156 in words is "three hundred twelve million, two hundred twenty-seven thousand, one hundred fifty-six".