1158340481 has 2 divisors, whose sum is σ = 1158340482. Its totient is φ = 1158340480.

The previous prime is 1158340439. The next prime is 1158340483. The reversal of 1158340481 is 1840438511.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1076889856 + 81450625 = 32816^2 + 9025^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1158340481 is a prime.

It is a super-2 number, since 2×1158340481² = 2683505339846622722, which contains 22 as substring.

Together with 1158340483, 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 (1158340483) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 579170240 + 579170241.

It is an arithmetic number, because the mean of its divisors is an integer number (579170241).

Almost surely, 2^1158340481 is an apocalyptic number.

It is an amenable number.

1158340481 is a deficient number, since it is larger than the sum of its proper divisors (1).

1158340481 is an equidigital number, since it uses as much as digits as its factorization.

1158340481 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15360, while the sum is 35.

The square root of 1158340481 is about 34034.4014344310. The cubic root of 1158340481 is about 1050.2162762350.

Adding to 1158340481 its reverse (1840438511), we get a palindrome (2998778992).

The spelling of 1158340481 in words is "one billion, one hundred fifty-eight million, three hundred forty thousand, four hundred eighty-one".