260678111 has 2 divisors, whose sum is σ = 260678112. Its totient is φ = 260678110.

The previous prime is 260678087. The next prime is 260678147. The reversal of 260678111 is 111876062.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 260678111 - 2²² = 256483807 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (260678161) 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 as a sum of consecutive naturals, namely, 130339055 + 130339056.

It is an arithmetic number, because the mean of its divisors is an integer number (130339056).

Almost surely, 2^260678111 is an apocalyptic number.

260678111 is a deficient number, since it is larger than the sum of its proper divisors (1).

260678111 is an equidigital number, since it uses as much as digits as its factorization.

260678111 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4032, while the sum is 32.

The square root of 260678111 is about 16145.5291334784. The cubic root of 260678111 is about 638.8048259281.

The spelling of 260678111 in words is "two hundred sixty million, six hundred seventy-eight thousand, one hundred eleven".