1298039 has 2 divisors, whose sum is σ = 1298040. Its totient is φ = 1298038.

The previous prime is 1298027. The next prime is 1298047. The reversal of 1298039 is 9308921.

It is a strong prime.

It is an emirp because it is prime and its reverse (9308921) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1298039 - 2²⁰ = 249463 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 1297996 and 1298014.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1294039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 649019 + 649020.

It is an arithmetic number, because the mean of its divisors is an integer number (649020).

2^1298039 is an apocalyptic number.

1298039 is a deficient number, since it is larger than the sum of its proper divisors (1).

1298039 is an equidigital number, since it uses as much as digits as its factorization.

1298039 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3888, while the sum is 32.

The square root of 1298039 is about 1139.3151451640. The cubic root of 1298039 is about 109.0843832165.

The spelling of 1298039 in words is "one million, two hundred ninety-eight thousand, thirty-nine".