1158203 has 2 divisors, whose sum is σ = 1158204. Its totient is φ = 1158202.

The previous prime is 1158197. The next prime is 1158217. The reversal of 1158203 is 3028511.

It is a weak prime.

It is an emirp because it is prime and its reverse (3028511) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1158203 - 2⁴ = 1158187 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (1158263) 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, 579101 + 579102.

It is an arithmetic number, because the mean of its divisors is an integer number (579102).

2^1158203 is an apocalyptic number.

1158203 is a deficient number, since it is larger than the sum of its proper divisors (1).

1158203 is an equidigital number, since it uses as much as digits as its factorization.

1158203 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 240, while the sum is 20.

The square root of 1158203 is about 1076.1984017829. The cubic root of 1158203 is about 105.0174725269.

The spelling of 1158203 in words is "one million, one hundred fifty-eight thousand, two hundred three".