260868187 has 2 divisors, whose sum is σ = 260868188. Its totient is φ = 260868186.

The previous prime is 260868163. The next prime is 260868197. The reversal of 260868187 is 781868062.

260868187 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-260868187 is a prime.

It is not a weakly prime, because it can be changed into another prime (260868197) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 130434093 + 130434094.

It is an arithmetic number, because the mean of its divisors is an integer number (130434094).

Almost surely, 2^260868187 is an apocalyptic number.

260868187 is a deficient number, since it is larger than the sum of its proper divisors (1).

260868187 is an equidigital number, since it uses as much as digits as its factorization.

260868187 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 258048, while the sum is 46.

The square root of 260868187 is about 16151.4143962688. The cubic root of 260868187 is about 638.9600518063.

The spelling of 260868187 in words is "two hundred sixty million, eight hundred sixty-eight thousand, one hundred eighty-seven".