312136422 has 32 divisors (see below), whose sum is σ = 711843552. Its totient is φ = 90392064.

The previous prime is 312136411. The next prime is 312136423. The reversal of 312136422 is 224631213.

It is a junction number, because it is equal to n+sod(n) for n = 312136392 and 312136401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312136423) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 116373 + ... + 119024.

It is an arithmetic number, because the mean of its divisors is an integer number (22245111).

Almost surely, 2^312136422 is an apocalyptic number.

312136422 is an abundant number, since it is smaller than the sum of its proper divisors (399707130).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

312136422 is a wasteful number, since it uses less digits than its factorization.

312136422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 235432.

The product of its digits is 1728, while the sum is 24.

The square root of 312136422 is about 17667.3829980561. The cubic root of 312136422 is about 678.3411280120.

Adding to 312136422 its reverse (224631213), we get a palindrome (536767635).

The spelling of 312136422 in words is "three hundred twelve million, one hundred thirty-six thousand, four hundred twenty-two".