312514216 has 32 divisors (see below), whose sum is σ = 670320000. Its totient is φ = 133805376.

The previous prime is 312514201. The next prime is 312514217. The reversal of 312514216 is 612415213.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (312514217) 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, 76350 + ... + 80338.

It is an arithmetic number, because the mean of its divisors is an integer number (20947500).

Almost surely, 2^312514216 is an apocalyptic number.

It is an amenable number.

312514216 is an abundant number, since it is smaller than the sum of its proper divisors (357805784).

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

312514216 is a wasteful number, since it uses less digits than its factorization.

312514216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5401 (or 5397 counting only the distinct ones).

The product of its digits is 1440, while the sum is 25.

The square root of 312514216 is about 17678.0716142910. The cubic root of 312514216 is about 678.6146941689.

Adding to 312514216 its reverse (612415213), we get a palindrome (924929429).

The spelling of 312514216 in words is "three hundred twelve million, five hundred fourteen thousand, two hundred sixteen".