1298053549 has 8 divisors (see below), whose sum is σ = 1406809880. Its totient is φ = 1190569536.

The previous prime is 1298053529. The next prime is 1298053577. The reversal of 1298053549 is 9453508921.

It can be written as a sum of positive squares in 4 ways, for example, as 88266025 + 1209787524 = 9395^2 + 34782^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-1298053549 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1298053499 and 1298053508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1298053529) 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 in 7 ways as a sum of consecutive naturals, for example, 315954 + ... + 320035.

It is an arithmetic number, because the mean of its divisors is an integer number (175851235).

Almost surely, 2^1298053549 is an apocalyptic number.

It is an amenable number.

1298053549 is a deficient number, since it is larger than the sum of its proper divisors (108756331).

1298053549 is a wasteful number, since it uses less digits than its factorization.

1298053549 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 636159.

The product of its (nonzero) digits is 388800, while the sum is 46.

The square root of 1298053549 is about 36028.5102245430. The cubic root of 1298053549 is about 1090.8479077048.

The spelling of 1298053549 in words is "one billion, two hundred ninety-eight million, fifty-three thousand, five hundred forty-nine".