312126706 has 4 divisors (see below), whose sum is σ = 468190062. Its totient is φ = 156063352.

The previous prime is 312126701. The next prime is 312126713. The reversal of 312126706 is 607621213.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 607621213 = 127 ⋅4784419.

It can be written as a sum of positive squares in only one way, i.e., 238424481 + 73702225 = 15441^2 + 8585^2 .

It is not an unprimeable number, because it can be changed into a prime (312126701) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78031675 + ... + 78031678.

Almost surely, 2^312126706 is an apocalyptic number.

312126706 is a deficient number, since it is larger than the sum of its proper divisors (156063356).

312126706 is a wasteful number, since it uses less digits than its factorization.

312126706 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156063355.

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 312126706 is about 17667.1080259334. The cubic root of 312126706 is about 678.3340896036.

Adding to 312126706 its reverse (607621213), we get a palindrome (919747919).

The spelling of 312126706 in words is "three hundred twelve million, one hundred twenty-six thousand, seven hundred six".