312543125 has 10 divisors (see below), whose sum is σ = 390554670. Its totient is φ = 250034000.

The previous prime is 312543089. The next prime is 312543139. The reversal of 312543125 is 521345213.

It is a happy number.

It can be written as a sum of positive squares in 5 ways, for example, as 138909796 + 173633329 = 11786^2 + 13177^2 .

It is not a de Polignac number, because 312543125 - 2⁸ = 312542869 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 312543094 and 312543103.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 249410 + ... + 250659.

It is an arithmetic number, because the mean of its divisors is an integer number (39055467).

Almost surely, 2^312543125 is an apocalyptic number.

It is an amenable number.

312543125 is a deficient number, since it is larger than the sum of its proper divisors (78011545).

312543125 is an frugal number, since it uses more digits than its factorization.

312543125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 500089 (or 500074 counting only the distinct ones).

The product of its digits is 3600, while the sum is 26.

The square root of 312543125 is about 17678.8892467824. The cubic root of 312543125 is about 678.6356185155.

Adding to 312543125 its reverse (521345213), we get a palindrome (833888338).

The spelling of 312543125 in words is "three hundred twelve million, five hundred forty-three thousand, one hundred twenty-five".