1158935801 has 2 divisors, whose sum is σ = 1158935802. Its totient is φ = 1158935800.

The previous prime is 1158935777. The next prime is 1158935803. The reversal of 1158935801 is 1085398511.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 752953600 + 405982201 = 27440^2 + 20149^2 .

It is an emirp because it is prime and its reverse (1085398511) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1158935801 - 2⁶ = 1158935737 is a prime.

Together with 1158935803, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1158935803) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 579467900 + 579467901.

It is an arithmetic number, because the mean of its divisors is an integer number (579467901).

Almost surely, 2^1158935801 is an apocalyptic number.

It is an amenable number.

1158935801 is a deficient number, since it is larger than the sum of its proper divisors (1).

1158935801 is an equidigital number, since it uses as much as digits as its factorization.

1158935801 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 43200, while the sum is 41.

The square root of 1158935801 is about 34043.1461677677. The cubic root of 1158935801 is about 1050.3961622260.

The spelling of 1158935801 in words is "one billion, one hundred fifty-eight million, nine hundred thirty-five thousand, eight hundred one".