268877143 has 4 divisors (see below), whose sum is σ = 269189568. Its totient is φ = 268564720.

The previous prime is 268877087. The next prime is 268877149. The reversal of 268877143 is 341778862.

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 268877143 - 2⁹ = 268876631 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 268877093 and 268877102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (268877149) 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, 154918 + ... + 156643.

It is an arithmetic number, because the mean of its divisors is an integer number (67297392).

Almost surely, 2^268877143 is an apocalyptic number.

268877143 is a deficient number, since it is larger than the sum of its proper divisors (312425).

268877143 is an equidigital number, since it uses as much as digits as its factorization.

268877143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 312424.

The product of its digits is 451584, while the sum is 46.

The square root of 268877143 is about 16397.4736773687. The cubic root of 268877143 is about 645.4331909600.

The spelling of 268877143 in words is "two hundred sixty-eight million, eight hundred seventy-seven thousand, one hundred forty-three".