312503125 has 24 divisors (see below), whose sum is σ = 426160224. Its totient is φ = 227250000.

The previous prime is 312503123. The next prime is 312503137. The reversal of 312503125 is 521305213.

It is not a de Polignac number, because 312503125 - 2¹ = 312503123 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 312503096 and 312503105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312503123) by changing a digit.

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, 29830 + ... + 38920.

It is an arithmetic number, because the mean of its divisors is an integer number (17756676).

Almost surely, 2^312503125 is an apocalyptic number.

It is an amenable number.

312503125 is a deficient number, since it is larger than the sum of its proper divisors (113657099).

312503125 is an frugal number, since it uses more digits than its factorization.

312503125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9127 (or 9107 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 22.

The square root of 312503125 is about 17677.7579177904. The cubic root of 312503125 is about 678.6066661559.

Adding to 312503125 its reverse (521305213), we get a palindrome (833808338).

The spelling of 312503125 in words is "three hundred twelve million, five hundred three thousand, one hundred twenty-five".