312140230 has 24 divisors (see below), whose sum is σ = 596852208. Its totient is φ = 117510528.

The previous prime is 312140167. The next prime is 312140237. The reversal of 312140230 is 32041213.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312140237) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 51114 + ... + 56893.

It is an arithmetic number, because the mean of its divisors is an integer number (24868842).

Almost surely, 2^312140230 is an apocalyptic number.

312140230 is a deficient number, since it is larger than the sum of its proper divisors (284711978).

312140230 is a wasteful number, since it uses less digits than its factorization.

312140230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108048 (or 108031 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 312140230 is about 17667.4907669425. The cubic root of 312140230 is about 678.3438865414.

Adding to 312140230 its reverse (32041213), we get a palindrome (344181443).

The spelling of 312140230 in words is "three hundred twelve million, one hundred forty thousand, two hundred thirty".