312142210 has 16 divisors (see below), whose sum is σ = 567012600. Its totient is φ = 123710976.

The previous prime is 312142157. The next prime is 312142211. The reversal of 312142210 is 12241213.

It can be written as a sum of positive squares in 4 ways, for example, as 312122889 + 19321 = 17667^2 + 139^2 .

It is not an unprimeable number, because it can be changed into a prime (312142211) 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 7 ways as a sum of consecutive naturals, for example, 142095 + ... + 144274.

Almost surely, 2^312142210 is an apocalyptic number.

312142210 is a deficient number, since it is larger than the sum of its proper divisors (254870390).

312142210 is a wasteful number, since it uses less digits than its factorization.

312142210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 286485.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 312142210 is about 17667.5468019756. The cubic root of 312142210 is about 678.3453208519.

Adding to 312142210 its reverse (12241213), we get a palindrome (324383423).

The spelling of 312142210 in words is "three hundred twelve million, one hundred forty-two thousand, two hundred ten".