260405597 has 2 divisors, whose sum is σ = 260405598. Its totient is φ = 260405596.

The previous prime is 260405591. The next prime is 260405603. The reversal of 260405597 is 795504062.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (260405591) and next prime (260405603).

It can be written as a sum of positive squares in only one way, i.e., 137217796 + 123187801 = 11714^2 + 11099^2 .

It is a cyclic number.

It is not a de Polignac number, because 260405597 - 2⁶ = 260405533 is a prime.

It is a super-2 number, since 2×260405597² = 135622149897852818, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 260405597.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (260405591) 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, 130202798 + 130202799.

It is an arithmetic number, because the mean of its divisors is an integer number (130202799).

Almost surely, 2^260405597 is an apocalyptic number.

It is an amenable number.

260405597 is a deficient number, since it is larger than the sum of its proper divisors (1).

260405597 is an equidigital number, since it uses as much as digits as its factorization.

260405597 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 75600, while the sum is 38.

The square root of 260405597 is about 16137.0876244755. The cubic root of 260405597 is about 638.5821452238.

The spelling of 260405597 in words is "two hundred sixty million, four hundred five thousand, five hundred ninety-seven".