312661084 has 24 divisors (see below), whose sum is σ = 561440880. Its totient is φ = 152269824.

The previous prime is 312661043. The next prime is 312661091. The reversal of 312661084 is 480166213.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

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, 64572 + ... + 69244.

It is an arithmetic number, because the mean of its divisors is an integer number (23393370).

Almost surely, 2^312661084 is an apocalyptic number.

It is an amenable number.

312661084 is a deficient number, since it is larger than the sum of its proper divisors (248779796).

312661084 is a wasteful number, since it uses less digits than its factorization.

312661084 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5109 (or 5107 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 312661084 is about 17682.2250862271. The cubic root of 312661084 is about 678.7209839192.

The spelling of 312661084 in words is "three hundred twelve million, six hundred sixty-one thousand, eighty-four".