1158135919 has 2 divisors, whose sum is σ = 1158135920. Its totient is φ = 1158135918.

The previous prime is 1158135893. The next prime is 1158135941. The reversal of 1158135919 is 9195318511.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1158135919 - 2⁵ = 1158135887 is a prime.

It is a super-2 number, since 2×1158135919² = 2682557613755949122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1158135959) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 579067959 + 579067960.

It is an arithmetic number, because the mean of its divisors is an integer number (579067960).

Almost surely, 2^1158135919 is an apocalyptic number.

1158135919 is a deficient number, since it is larger than the sum of its proper divisors (1).

1158135919 is an equidigital number, since it uses as much as digits as its factorization.

1158135919 is an evil number, because the sum of its binary digits is even.

The product of its digits is 48600, while the sum is 43.

The square root of 1158135919 is about 34031.3960777397. The cubic root of 1158135919 is about 1050.1544501447.

The spelling of 1158135919 in words is "one billion, one hundred fifty-eight million, one hundred thirty-five thousand, nine hundred nineteen".