312085902 has 8 divisors (see below), whose sum is σ = 624171816. Its totient is φ = 104028632.

The previous prime is 312085871. The next prime is 312085903. The reversal of 312085902 is 209580213.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

312085902 is an admirable number.

It is a super-2 number, since 2×312085902² = 194795220454307208, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 312085902.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312085903) 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 3 ways as a sum of consecutive naturals, for example, 26007153 + ... + 26007164.

It is an arithmetic number, because the mean of its divisors is an integer number (78021477).

Almost surely, 2^312085902 is an apocalyptic number.

312085902 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

312085902 is a wasteful number, since it uses less digits than its factorization.

312085902 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52014322.

The product of its (nonzero) digits is 4320, while the sum is 30.

The square root of 312085902 is about 17665.9531868507. The cubic root of 312085902 is about 678.3045290118.

The spelling of 312085902 in words is "three hundred twelve million, eighty-five thousand, nine hundred two".