312915729125 has 8 divisors (see below), whose sum is σ = 390518830104. Its totient is φ = 250332583200.

The previous prime is 312915729121. The next prime is 312915729131. The reversal of 312915729125 is 521927519213.

It can be written as a sum of positive squares in 4 ways, for example, as 93136663489 + 219779065636 = 305183^2 + 468806^2 .

It is not a de Polignac number, because 312915729125 - 2² = 312915729121 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 312915729125.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312915729121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1251662792 + ... + 1251663041.

It is an arithmetic number, because the mean of its divisors is an integer number (48814853763).

Almost surely, 2^312915729125 is an apocalyptic number.

It is an amenable number.

312915729125 is a deficient number, since it is larger than the sum of its proper divisors (77603100979).

312915729125 is an equidigital number, since it uses as much as digits as its factorization.

312915729125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2503325848 (or 2503325838 counting only the distinct ones).

The product of its digits is 340200, while the sum is 47.

The spelling of 312915729125 in words is "three hundred twelve billion, nine hundred fifteen million, seven hundred twenty-nine thousand, one hundred twenty-five".