312873143 has 4 divisors (see below), whose sum is σ = 341316168. Its totient is φ = 284430120.

The previous prime is 312873137. The next prime is 312873179. The reversal of 312873143 is 341378213.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 312873143 - 2⁶ = 312873079 is a prime.

It is a super-2 number, since 2×312873143² = 195779207221396898, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312873193) 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 3 ways as a sum of consecutive naturals, for example, 14221496 + ... + 14221517.

It is an arithmetic number, because the mean of its divisors is an integer number (85329042).

Almost surely, 2^312873143 is an apocalyptic number.

312873143 is a deficient number, since it is larger than the sum of its proper divisors (28443025).

312873143 is a wasteful number, since it uses less digits than its factorization.

312873143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28443024.

The product of its digits is 12096, while the sum is 32.

The square root of 312873143 is about 17688.2204588251. The cubic root of 312873143 is about 678.8743942980.

The spelling of 312873143 in words is "three hundred twelve million, eight hundred seventy-three thousand, one hundred forty-three".