260723081 has 2 divisors, whose sum is σ = 260723082. Its totient is φ = 260723080.

The previous prime is 260723069. The next prime is 260723107. The reversal of 260723081 is 180327062.

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., 168870025 + 91853056 = 12995^2 + 9584^2 .

It is a cyclic number.

It is not a de Polignac number, because 260723081 - 2⁶ = 260723017 is a prime.

It is a super-2 number, since 2×260723081² = 135953049932265122, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (260723011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 130361540 + 130361541.

It is an arithmetic number, because the mean of its divisors is an integer number (130361541).

Almost surely, 2^260723081 is an apocalyptic number.

It is an amenable number.

260723081 is a deficient number, since it is larger than the sum of its proper divisors (1).

260723081 is an equidigital number, since it uses as much as digits as its factorization.

260723081 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 29.

The square root of 260723081 is about 16146.9217190151. The cubic root of 260723081 is about 638.8415575651.

The spelling of 260723081 in words is "two hundred sixty million, seven hundred twenty-three thousand, eighty-one".