1298289 has 8 divisors (see below), whose sum is σ = 1822240. Its totient is φ = 819936.

The previous prime is 1298279. The next prime is 1298291. The reversal of 1298289 is 9828921.

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

It is not a de Polignac number, because 1298289 - 2⁷ = 1298161 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1298279) 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 in 7 ways as a sum of consecutive naturals, for example, 11332 + ... + 11445.

It is an arithmetic number, because the mean of its divisors is an integer number (227780).

2^1298289 is an apocalyptic number.

1298289 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

1298289 is a deficient number, since it is larger than the sum of its proper divisors (523951).

1298289 is a wasteful number, since it uses less digits than its factorization.

1298289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22799.

The product of its digits is 20736, while the sum is 39.

The square root of 1298289 is about 1139.4248549158. The cubic root of 1298289 is about 109.0913859196.

The spelling of 1298289 in words is "one million, two hundred ninety-eight thousand, two hundred eighty-nine".