260001449 has 2 divisors, whose sum is σ = 260001450. Its totient is φ = 260001448.

The previous prime is 260001437. The next prime is 260001563. The reversal of 260001449 is 944100062.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 244359424 + 15642025 = 15632^2 + 3955^2 .

It is a cyclic number.

It is not a de Polignac number, because 260001449 - 2⁸ = 260001193 is a prime.

It is not a weakly prime, because it can be changed into another prime (260001409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 130000724 + 130000725.

It is an arithmetic number, because the mean of its divisors is an integer number (130000725).

Almost surely, 2^260001449 is an apocalyptic number.

It is an amenable number.

260001449 is a deficient number, since it is larger than the sum of its proper divisors (1).

260001449 is an equidigital number, since it uses as much as digits as its factorization.

260001449 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 260001449 is about 16124.5604281171. The cubic root of 260001449 is about 638.2516155567.

The spelling of 260001449 in words is "two hundred sixty million, one thousand, four hundred forty-nine".