260428169 has 2 divisors, whose sum is σ = 260428170. Its totient is φ = 260428168.

The previous prime is 260428159. The next prime is 260428211. The reversal of 260428169 is 961824062.

260428169 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 253605625 + 6822544 = 15925^2 + 2612^2 .

It is a cyclic number.

It is not a de Polignac number, because 260428169 - 2⁴ = 260428153 is a prime.

It is a super-2 number, since 2×260428169² = 135645662417385122, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (260428139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 130214084 + 130214085.

It is an arithmetic number, because the mean of its divisors is an integer number (130214085).

Almost surely, 2^260428169 is an apocalyptic number.

It is an amenable number.

260428169 is a deficient number, since it is larger than the sum of its proper divisors (1).

260428169 is an equidigital number, since it uses as much as digits as its factorization.

260428169 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 41472, while the sum is 38.

The square root of 260428169 is about 16137.7869920259. The cubic root of 260428169 is about 638.6005954925.

The spelling of 260428169 in words is "two hundred sixty million, four hundred twenty-eight thousand, one hundred sixty-nine".