268765142 has 4 divisors (see below), whose sum is σ = 403147716. Its totient is φ = 134382570.

The previous prime is 268765139. The next prime is 268765153. The reversal of 268765142 is 241567862.

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

It is a self number, because there is not a number n which added to its sum of digits gives 268765142.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67191284 + ... + 67191287.

It is an arithmetic number, because the mean of its divisors is an integer number (100786929).

Almost surely, 2^268765142 is an apocalyptic number.

268765142 is a deficient number, since it is larger than the sum of its proper divisors (134382574).

268765142 is a wasteful number, since it uses less digits than its factorization.

268765142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134382573.

The product of its digits is 161280, while the sum is 41.

The square root of 268765142 is about 16394.0581309205. The cubic root of 268765142 is about 645.3435599341.

The spelling of 268765142 in words is "two hundred sixty-eight million, seven hundred sixty-five thousand, one hundred forty-two".