312144143 has 4 divisors (see below), whose sum is σ = 312995040. Its totient is φ = 311293248.

The previous prime is 312144121. The next prime is 312144149. The reversal of 312144143 is 341441213.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 341441213 = 3851 ⋅88663.

It is a cyclic number.

It is not a de Polignac number, because 312144143 - 2¹⁰ = 312143119 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312144149) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 424898 + ... + 425631.

It is an arithmetic number, because the mean of its divisors is an integer number (78248760).

Almost surely, 2^312144143 is an apocalyptic number.

312144143 is a deficient number, since it is larger than the sum of its proper divisors (850897).

312144143 is an equidigital number, since it uses as much as digits as its factorization.

312144143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 850896.

The product of its digits is 1152, while the sum is 23.

The square root of 312144143 is about 17667.6015067128. The cubic root of 312144143 is about 678.3467211098.

Adding to 312144143 its reverse (341441213), we get a palindrome (653585356).

The spelling of 312144143 in words is "three hundred twelve million, one hundred forty-four thousand, one hundred forty-three".