312215325 has 24 divisors (see below), whose sum is σ = 517416288. Its totient is φ = 166121280.

The previous prime is 312215311. The next prime is 312215327. The reversal of 312215325 is 523512213.

It is a happy number.

It is not a de Polignac number, because 312215325 - 2⁹ = 312214813 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 312215295 and 312215304.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312215327) 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, 28527 + ... + 37923.

It is an arithmetic number, because the mean of its divisors is an integer number (21559012).

Almost surely, 2^312215325 is an apocalyptic number.

It is an amenable number.

312215325 is a deficient number, since it is larger than the sum of its proper divisors (205200963).

312215325 is a wasteful number, since it uses less digits than its factorization.

312215325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9853 (or 9848 counting only the distinct ones).

The product of its digits is 1800, while the sum is 24.

The square root of 312215325 is about 17669.6158701880. The cubic root of 312215325 is about 678.3982810568.

Adding to 312215325 its reverse (523512213), we get a palindrome (835727538).

The spelling of 312215325 in words is "three hundred twelve million, two hundred fifteen thousand, three hundred twenty-five".