268542071 has 4 divisors (see below), whose sum is σ = 306905232. Its totient is φ = 230178912.

The previous prime is 268542037. The next prime is 268542077. The reversal of 268542071 is 170245862.

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 268542071 - 2¹⁰ = 268541047 is a prime.

It is a super-2 number, since 2×268542071² = 144229687793938082, 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 (268542077) 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, 19181570 + ... + 19181583.

It is an arithmetic number, because the mean of its divisors is an integer number (76726308).

Almost surely, 2^268542071 is an apocalyptic number.

268542071 is a deficient number, since it is larger than the sum of its proper divisors (38363161).

268542071 is an equidigital number, since it uses as much as digits as its factorization.

268542071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38363160.

The product of its (nonzero) digits is 26880, while the sum is 35.

The square root of 268542071 is about 16387.2533085932. The cubic root of 268542071 is about 645.1649687199.

The spelling of 268542071 in words is "two hundred sixty-eight million, five hundred forty-two thousand, seventy-one".