312115136 has 14 divisors (see below), whose sum is σ = 619353600. Its totient is φ = 156057536.

The previous prime is 312115123. The next prime is 312115157. The reversal of 312115136 is 631511213.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2438336 + ... + 2438463.

Almost surely, 2^312115136 is an apocalyptic number.

It is an amenable number.

312115136 is a deficient number, since it is larger than the sum of its proper divisors (307238464).

312115136 is an equidigital number, since it uses as much as digits as its factorization.

312115136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4876811 (or 4876801 counting only the distinct ones).

The product of its digits is 540, while the sum is 23.

The square root of 312115136 is about 17666.7805782491. The cubic root of 312115136 is about 678.3257079408.

Adding to 312115136 its reverse (631511213), we get a palindrome (943626349).

The spelling of 312115136 in words is "three hundred twelve million, one hundred fifteen thousand, one hundred thirty-six".