312124005 has 24 divisors (see below), whose sum is σ = 544155768. Its totient is φ = 165499776.

The previous prime is 312123997. The next prime is 312124031. The reversal of 312124005 is 500421213.

It can be written as a sum of positive squares in 4 ways, for example, as 26040609 + 286083396 = 5103^2 + 16914^2 .

It is not a de Polignac number, because 312124005 - 2³ = 312123997 is a prime.

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 23 ways as a sum of consecutive naturals, for example, 12262 + ... + 27831.

It is an arithmetic number, because the mean of its divisors is an integer number (22673157).

Almost surely, 2^312124005 is an apocalyptic number.

It is an amenable number.

312124005 is a deficient number, since it is larger than the sum of its proper divisors (232031763).

312124005 is a wasteful number, since it uses less digits than its factorization.

312124005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40277 (or 40274 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 312124005 is about 17667.0315842815. The cubic root of 312124005 is about 678.3321329349.

Adding to 312124005 its reverse (500421213), we get a palindrome (812545218).

The spelling of 312124005 in words is "three hundred twelve million, one hundred twenty-four thousand, five".