312645445 has 8 divisors (see below), whose sum is σ = 428770944. Its totient is φ = 214385424.

The previous prime is 312645439. The next prime is 312645461. The reversal of 312645445 is 544546213.

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

It is a cyclic number.

It is not a de Polignac number, because 312645445 - 2⁵ = 312645413 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 312645445.

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, 4466329 + ... + 4466398.

It is an arithmetic number, because the mean of its divisors is an integer number (53596368).

Almost surely, 2^312645445 is an apocalyptic number.

312645445 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

312645445 is a deficient number, since it is larger than the sum of its proper divisors (116125499).

312645445 is an equidigital number, since it uses as much as digits as its factorization.

312645445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8932739.

The product of its digits is 57600, while the sum is 34.

The square root of 312645445 is about 17681.7828569406. The cubic root of 312645445 is about 678.7096674118.

The spelling of 312645445 in words is "three hundred twelve million, six hundred forty-five thousand, four hundred forty-five".