312315477 has 8 divisors (see below), whose sum is σ = 417416160. Its totient is φ = 207712560.

The previous prime is 312315463. The next prime is 312315481. The reversal of 312315477 is 774513213.

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

It is not a de Polignac number, because 312315477 - 2⁸ = 312315221 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312315427) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 122974 + ... + 125487.

It is an arithmetic number, because the mean of its divisors is an integer number (52177020).

Almost surely, 2^312315477 is an apocalyptic number.

It is an amenable number.

312315477 is a deficient number, since it is larger than the sum of its proper divisors (105100683).

312315477 is a wasteful number, since it uses less digits than its factorization.

312315477 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 248883.

The product of its digits is 17640, while the sum is 33.

The square root of 312315477 is about 17672.4496604178. The cubic root of 312315477 is about 678.4708118559.

The spelling of 312315477 in words is "three hundred twelve million, three hundred fifteen thousand, four hundred seventy-seven".