1148839 has 2 divisors, whose sum is σ = 1148840. Its totient is φ = 1148838.

The previous prime is 1148837. The next prime is 1148857. The reversal of 1148839 is 9388411.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1148839 - 2¹ = 1148837 is a prime.

Together with 1148837, it forms a pair of twin primes.

1148839 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1148837) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 574419 + 574420.

It is an arithmetic number, because the mean of its divisors is an integer number (574420).

2^1148839 is an apocalyptic number.

1148839 is a deficient number, since it is larger than the sum of its proper divisors (1).

1148839 is an equidigital number, since it uses as much as digits as its factorization.

1148839 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6912, while the sum is 34.

The square root of 1148839 is about 1071.8390737419. The cubic root of 1148839 is about 104.7336864147.

The spelling of 1148839 in words is "one million, one hundred forty-eight thousand, eight hundred thirty-nine".