268143061 has 2 divisors, whose sum is σ = 268143062. Its totient is φ = 268143060.

The previous prime is 268143053. The next prime is 268143097. The reversal of 268143061 is 160341862.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 180364900 + 87778161 = 13430^2 + 9369^2 .

It is a cyclic number.

It is not a de Polignac number, because 268143061 - 2³ = 268143053 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (268144061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 134071530 + 134071531.

It is an arithmetic number, because the mean of its divisors is an integer number (134071531).

Almost surely, 2^268143061 is an apocalyptic number.

It is an amenable number.

268143061 is a deficient number, since it is larger than the sum of its proper divisors (1).

268143061 is an equidigital number, since it uses as much as digits as its factorization.

268143061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 268143061 is about 16375.0743815105. The cubic root of 268143061 is about 644.8452734645.

The spelling of 268143061 in words is "two hundred sixty-eight million, one hundred forty-three thousand, sixty-one".