312422285 has 12 divisors (see below), whose sum is σ = 436116348. Its totient is φ = 214232256.

The previous prime is 312422281. The next prime is 312422291. The reversal of 312422285 is 582224213.

It can be written as a sum of positive squares in 2 ways, for example, as 237807241 + 74615044 = 15421^2 + 8638^2 .

It is not a de Polignac number, because 312422285 - 2² = 312422281 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 (312422281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 637352 + ... + 637841.

It is an arithmetic number, because the mean of its divisors is an integer number (36343029).

Almost surely, 2^312422285 is an apocalyptic number.

312422285 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

312422285 is a deficient number, since it is larger than the sum of its proper divisors (123694063).

312422285 is a wasteful number, since it uses less digits than its factorization.

312422285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1275212 (or 1275205 counting only the distinct ones).

The product of its digits is 7680, while the sum is 29.

The square root of 312422285 is about 17675.4712808457. The cubic root of 312422285 is about 678.5481458942.

Adding to 312422285 its reverse (582224213), we get a palindrome (894646498).

The spelling of 312422285 in words is "three hundred twelve million, four hundred twenty-two thousand, two hundred eighty-five".