312115412 has 24 divisors (see below), whose sum is σ = 632136960. Its totient is φ = 132069600.

The previous prime is 312115403. The next prime is 312115421. The reversal of 312115412 is 214511213.

It is an interprime number because it is at equal distance from previous prime (312115403) and next prime (312115421).

It is a super-3 number, since 3×312115412³ (a number of 26 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 68339 + ... + 72762.

It is an arithmetic number, because the mean of its divisors is an integer number (26339040).

Almost surely, 2^312115412 is an apocalyptic number.

It is an amenable number.

312115412 is an abundant number, since it is smaller than the sum of its proper divisors (320021548).

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

312115412 is a wasteful number, since it uses less digits than its factorization.

312115412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141191 (or 141189 counting only the distinct ones).

The product of its digits is 240, while the sum is 20.

The square root of 312115412 is about 17666.7883895178. The cubic root of 312115412 is about 678.3259078861.

Adding to 312115412 its reverse (214511213), we get a palindrome (526626625).

The spelling of 312115412 in words is "three hundred twelve million, one hundred fifteen thousand, four hundred twelve".