312514394 has 16 divisors (see below), whose sum is σ = 502757280. Its totient is φ = 145239120.

The previous prime is 312514393. The next prime is 312514481. The reversal of 312514394 is 493415213.

It is a self number, because there is not a number n which added to its sum of digits gives 312514394.

It is not an unprimeable number, because it can be changed into a prime (312514393) 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 7 ways as a sum of consecutive naturals, for example, 75572 + ... + 79599.

It is an arithmetic number, because the mean of its divisors is an integer number (31422330).

Almost surely, 2^312514394 is an apocalyptic number.

312514394 is a deficient number, since it is larger than the sum of its proper divisors (190242886).

312514394 is a wasteful number, since it uses less digits than its factorization.

312514394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155245.

The product of its digits is 12960, while the sum is 32.

The square root of 312514394 is about 17678.0766487760. The cubic root of 312514394 is about 678.6148230093.

The spelling of 312514394 in words is "three hundred twelve million, five hundred fourteen thousand, three hundred ninety-four".