268202117 has 2 divisors, whose sum is σ = 268202118. Its totient is φ = 268202116.

The previous prime is 268202113. The next prime is 268202147. The reversal of 268202117 is 711202862.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 193794241 + 74407876 = 13921^2 + 8626^2 .

It is a cyclic number.

It is not a de Polignac number, because 268202117 - 2² = 268202113 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 268202117.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (268202113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 134101058 + 134101059.

It is an arithmetic number, because the mean of its divisors is an integer number (134101059).

Almost surely, 2^268202117 is an apocalyptic number.

It is an amenable number.

268202117 is a deficient number, since it is larger than the sum of its proper divisors (1).

268202117 is an equidigital number, since it uses as much as digits as its factorization.

268202117 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2688, while the sum is 29.

The square root of 268202117 is about 16376.8775106856. The cubic root of 268202117 is about 644.8926103686.

Adding to 268202117 its reverse (711202862), we get a palindrome (979404979).

The spelling of 268202117 in words is "two hundred sixty-eight million, two hundred two thousand, one hundred seventeen".