312661085 has 8 divisors (see below), whose sum is σ = 409301856. Its totient is φ = 227389840.

The previous prime is 312661043. The next prime is 312661091. The reversal of 312661085 is 580166213.

It is a happy number.

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

It is a de Polignac number, because none of the positive numbers 2^k-312661085 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2842319 + ... + 2842428.

It is an arithmetic number, because the mean of its divisors is an integer number (51162732).

Almost surely, 2^312661085 is an apocalyptic number.

It is an amenable number.

312661085 is a deficient number, since it is larger than the sum of its proper divisors (96640771).

312661085 is a wasteful number, since it uses less digits than its factorization.

312661085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5684763.

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 312661085 is about 17682.2251145041. The cubic root of 312661085 is about 678.7209846428.

The spelling of 312661085 in words is "three hundred twelve million, six hundred sixty-one thousand, eighty-five".