1158799 has 2 divisors, whose sum is σ = 1158800. Its totient is φ = 1158798.

The previous prime is 1158769. The next prime is 1158821. The reversal of 1158799 is 9978511.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1158799 - 2¹¹ = 1156751 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1158719) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 579399 + 579400.

It is an arithmetic number, because the mean of its divisors is an integer number (579400).

2^1158799 is an apocalyptic number.

1158799 is a deficient number, since it is larger than the sum of its proper divisors (1).

1158799 is an equidigital number, since it uses as much as digits as its factorization.

1158799 is an evil number, because the sum of its binary digits is even.

The product of its digits is 22680, while the sum is 40.

The square root of 1158799 is about 1076.4752667851. The cubic root of 1158799 is about 105.0354830946.

The spelling of 1158799 in words is "one million, one hundred fifty-eight thousand, seven hundred ninety-nine".