312133722 has 16 divisors (see below), whose sum is σ = 625467360. Its totient is φ = 103844592.

The previous prime is 312133711. The next prime is 312133727. The reversal of 312133722 is 227331213.

It is a junction number, because it is equal to n+sod(n) for n = 312133692 and 312133701.

It is not an unprimeable number, because it can be changed into a prime (312133727) 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, 46597 + ... + 52872.

It is an arithmetic number, because the mean of its divisors is an integer number (39091710).

Almost surely, 2^312133722 is an apocalyptic number.

312133722 is an abundant number, since it is smaller than the sum of its proper divisors (313333638).

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

312133722 is a wasteful number, since it uses less digits than its factorization.

312133722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99997.

The product of its digits is 1512, while the sum is 24.

The square root of 312133722 is about 17667.3065858947. The cubic root of 312133722 is about 678.3391721083.

Adding to 312133722 its reverse (227331213), we get a palindrome (539464935).

The spelling of 312133722 in words is "three hundred twelve million, one hundred thirty-three thousand, seven hundred twenty-two".