312105252 has 24 divisors (see below), whose sum is σ = 728687232. Its totient is φ = 103972000.

The previous prime is 312105217. The next prime is 312105253. The reversal of 312105252 is 252501213.

It is not an unprimeable number, because it can be changed into a prime (312105253) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15502 + ... + 29402.

It is an arithmetic number, because the mean of its divisors is an integer number (30361968).

Almost surely, 2^312105252 is an apocalyptic number.

It is an amenable number.

312105252 is an abundant number, since it is smaller than the sum of its proper divisors (416581980).

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

312105252 is a wasteful number, since it uses less digits than its factorization.

312105252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15779 (or 15777 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 312105252 is about 17666.5008419891. The cubic root of 312105252 is about 678.3185475041.

Adding to 312105252 its reverse (252501213), we get a palindrome (564606465).

The spelling of 312105252 in words is "three hundred twelve million, one hundred five thousand, two hundred fifty-two".