312136680 has 64 divisors (see below), whose sum is σ = 977132160. Its totient is φ = 79616768.

The previous prime is 312136667. The next prime is 312136691. The reversal of 312136680 is 86631213.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 53787 + ... + 59306.

It is an arithmetic number, because the mean of its divisors is an integer number (15267690).

Almost surely, 2^312136680 is an apocalyptic number.

312136680 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

312136680 is an abundant number, since it is smaller than the sum of its proper divisors (664995480).

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

312136680 is a wasteful number, since it uses less digits than its factorization.

312136680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113130 (or 113126 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 312136680 is about 17667.3902996453. The cubic root of 312136680 is about 678.3413149088.

Adding to 312136680 its reverse (86631213), we get a palindrome (398767893).

The spelling of 312136680 in words is "three hundred twelve million, one hundred thirty-six thousand, six hundred eighty".