1298844545 has 16 divisors (see below), whose sum is σ = 1580113920. Its totient is φ = 1024830144.

The previous prime is 1298844527. The next prime is 1298844563. The reversal of 1298844545 is 5454488921.

It is an interprime number because it is at equal distance from previous prime (1298844527) and next prime (1298844563).

It is a cyclic number.

It is not a de Polignac number, because 1298844545 - 2¹⁸ = 1298582401 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1298844493 and 1298844502.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 116192 + ... + 126878.

It is an arithmetic number, because the mean of its divisors is an integer number (98757120).

Almost surely, 2^1298844545 is an apocalyptic number.

It is an amenable number.

1298844545 is a deficient number, since it is larger than the sum of its proper divisors (281269375).

1298844545 is a wasteful number, since it uses less digits than its factorization.

1298844545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11024.

The product of its digits is 1843200, while the sum is 50.

The square root of 1298844545 is about 36039.4859147574. The cubic root of 1298844545 is about 1091.0694396863.

The spelling of 1298844545 in words is "one billion, two hundred ninety-eight million, eight hundred forty-four thousand, five hundred forty-five".