312105025 has 6 divisors (see below), whose sum is σ = 387010262. Its totient is φ = 249684000.

The previous prime is 312105019. The next prime is 312105029. The reversal of 312105025 is 520501213.

It can be written as a sum of positive squares in 3 ways, for example, as 23648769 + 288456256 = 4863^2 + 16984^2 .

It is not a de Polignac number, because 312105025 - 2¹³ = 312096833 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 312104993 and 312105011.

It is not an unprimeable number, because it can be changed into a prime (312105029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6242076 + ... + 6242125.

Almost surely, 2^312105025 is an apocalyptic number.

It is an amenable number.

312105025 is a deficient number, since it is larger than the sum of its proper divisors (74905237).

312105025 is a wasteful number, since it uses less digits than its factorization.

312105025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12484211 (or 12484206 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 19.

The square root of 312105025 is about 17666.4944173993. The cubic root of 312105025 is about 678.3183830528.

Adding to 312105025 its reverse (520501213), we get a palindrome (832606238).

The spelling of 312105025 in words is "three hundred twelve million, one hundred five thousand, twenty-five".