312015252 has 48 divisors (see below), whose sum is σ = 736464960. Its totient is φ = 102809088.

The previous prime is 312015241. The next prime is 312015257. The reversal of 312015252 is 252510213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312015257) 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, 525868 + ... + 526460.

It is an arithmetic number, because the mean of its divisors is an integer number (15343020).

Almost surely, 2^312015252 is an apocalyptic number.

It is an amenable number.

312015252 is an abundant number, since it is smaller than the sum of its proper divisors (424449708).

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

312015252 is a wasteful number, since it uses less digits than its factorization.

312015252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1032 (or 1030 counting only the distinct ones).

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

The square root of 312015252 is about 17663.9534646126. The cubic root of 312015252 is about 678.2533402939.

Adding to 312015252 its reverse (252510213), we get a palindrome (564525465).

The spelling of 312015252 in words is "three hundred twelve million, fifteen thousand, two hundred fifty-two".