1147039 has 2 divisors, whose sum is σ = 1147040. Its totient is φ = 1147038.

The previous prime is 1147021. The next prime is 1147043. The reversal of 1147039 is 9307411.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1147039 - 2⁷ = 1146911 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1147009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 573519 + 573520.

It is an arithmetic number, because the mean of its divisors is an integer number (573520).

2^1147039 is an apocalyptic number.

1147039 is a deficient number, since it is larger than the sum of its proper divisors (1).

1147039 is an equidigital number, since it uses as much as digits as its factorization.

1147039 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 756, while the sum is 25.

The square root of 1147039 is about 1070.9990662928. Note that the first 3 decimals coincide. The cubic root of 1147039 is about 104.6789589378.

The spelling of 1147039 in words is "one million, one hundred forty-seven thousand, thirty-nine".