312144005 has 4 divisors (see below), whose sum is σ = 374572812. Its totient is φ = 249715200.

The previous prime is 312143999. The next prime is 312144011. The reversal of 312144005 is 500441213.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 500441213 = 223 ⋅2244131.

It is an interprime number because it is at equal distance from previous prime (312143999) and next prime (312144011).

It can be written as a sum of positive squares in 2 ways, for example, as 49477156 + 262666849 = 7034^2 + 16207^2 .

It is not a de Polignac number, because 312144005 - 2⁶ = 312143941 is a prime.

It is a Duffinian 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 3 ways as a sum of consecutive naturals, for example, 31214396 + ... + 31214405.

It is an arithmetic number, because the mean of its divisors is an integer number (93643203).

Almost surely, 2^312144005 is an apocalyptic number.

It is an amenable number.

312144005 is a deficient number, since it is larger than the sum of its proper divisors (62428807).

312144005 is an equidigital number, since it uses as much as digits as its factorization.

312144005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62428806.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 312144005 is about 17667.5976012586. The cubic root of 312144005 is about 678.3466211433.

Adding to 312144005 its reverse (500441213), we get a palindrome (812585218).

The spelling of 312144005 in words is "three hundred twelve million, one hundred forty-four thousand, five".