268143043 has 6 divisors (see below), whose sum is σ = 311921556. Its totient is φ = 229836852.

The previous prime is 268143013. The next prime is 268143047. The reversal of 268143043 is 340341862.

It is a de Polignac number, because none of the positive numbers 2^k-268143043 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 268142996 and 268143014.

It is not an unprimeable number, because it can be changed into a prime (268143047) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2736105 + ... + 2736202.

It is an arithmetic number, because the mean of its divisors is an integer number (51986926).

Almost surely, 2^268143043 is an apocalyptic number.

268143043 is a deficient number, since it is larger than the sum of its proper divisors (43778513).

268143043 is an equidigital number, since it uses as much as digits as its factorization.

268143043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5472321 (or 5472314 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 31.

The square root of 268143043 is about 16375.0738318946. The cubic root of 268143043 is about 644.8452590354.

The spelling of 268143043 in words is "two hundred sixty-eight million, one hundred forty-three thousand, forty-three".