260115649 has 2 divisors, whose sum is σ = 260115650. Its totient is φ = 260115648.

The previous prime is 260115629. The next prime is 260115677. The reversal of 260115649 is 946511062.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 183115024 + 77000625 = 13532^2 + 8775^2 .

It is a cyclic number.

It is not a de Polignac number, because 260115649 - 2⁵ = 260115617 is a prime.

It is not a weakly prime, because it can be changed into another prime (260115629) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 130057824 + 130057825.

It is an arithmetic number, because the mean of its divisors is an integer number (130057825).

Almost surely, 2^260115649 is an apocalyptic number.

It is an amenable number.

260115649 is a deficient number, since it is larger than the sum of its proper divisors (1).

260115649 is an equidigital number, since it uses as much as digits as its factorization.

260115649 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12960, while the sum is 34.

The square root of 260115649 is about 16128.1012211605. The cubic root of 260115649 is about 638.3450479406.

The spelling of 260115649 in words is "two hundred sixty million, one hundred fifteen thousand, six hundred forty-nine".