312522245 has 12 divisors (see below), whose sum is σ = 436255884. Its totient is φ = 214300800.

The previous prime is 312522227. The next prime is 312522247. The reversal of 312522245 is 542225213.

It can be written as a sum of positive squares in 2 ways, for example, as 150749284 + 161772961 = 12278^2 + 12719^2 .

It is not a de Polignac number, because 312522245 - 2¹⁰ = 312521221 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312522247) 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 11 ways as a sum of consecutive naturals, for example, 637556 + ... + 638045.

It is an arithmetic number, because the mean of its divisors is an integer number (36354657).

Almost surely, 2^312522245 is an apocalyptic number.

312522245 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

312522245 is a deficient number, since it is larger than the sum of its proper divisors (123733639).

312522245 is a wasteful number, since it uses less digits than its factorization.

312522245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1275620 (or 1275613 counting only the distinct ones).

The product of its digits is 4800, while the sum is 26.

The square root of 312522245 is about 17678.2987020810. The cubic root of 312522245 is about 678.6205056920.

Adding to 312522245 its reverse (542225213), we get a palindrome (854747458).

The spelling of 312522245 in words is "three hundred twelve million, five hundred twenty-two thousand, two hundred forty-five".