1158390203 has 2 divisors, whose sum is σ = 1158390204. Its totient is φ = 1158390202.

The previous prime is 1158390173. The next prime is 1158390209. The reversal of 1158390203 is 3020938511.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1158390203 - 2¹⁴ = 1158373819 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1158390203.

It is not a weakly prime, because it can be changed into another prime (1158390209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 579195101 + 579195102.

It is an arithmetic number, because the mean of its divisors is an integer number (579195102).

Almost surely, 2^1158390203 is an apocalyptic number.

1158390203 is a deficient number, since it is larger than the sum of its proper divisors (1).

1158390203 is an equidigital number, since it uses as much as digits as its factorization.

1158390203 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6480, while the sum is 32.

The square root of 1158390203 is about 34035.1318933833. The cubic root of 1158390203 is about 1050.2313029355.

The spelling of 1158390203 in words is "one billion, one hundred fifty-eight million, three hundred ninety thousand, two hundred three".