268312073 has 4 divisors (see below), whose sum is σ = 268910100. Its totient is φ = 267714048.

The previous prime is 268312069. The next prime is 268312081. The reversal of 268312073 is 370213862.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 225840784 + 42471289 = 15028^2 + 6517^2 .

It is a cyclic number.

It is not a de Polignac number, because 268312073 - 2² = 268312069 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (268312063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 298340 + ... + 299237.

It is an arithmetic number, because the mean of its divisors is an integer number (67227525).

Almost surely, 2^268312073 is an apocalyptic number.

It is an amenable number.

268312073 is a deficient number, since it is larger than the sum of its proper divisors (598027).

268312073 is an equidigital number, since it uses as much as digits as its factorization.

268312073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 598026.

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

The square root of 268312073 is about 16380.2342168847. The cubic root of 268312073 is about 644.9807281464.

The spelling of 268312073 in words is "two hundred sixty-eight million, three hundred twelve thousand, seventy-three".