1158382705 has 4 divisors (see below), whose sum is σ = 1390059252. Its totient is φ = 926706160.

The previous prime is 1158382663. The next prime is 1158382723. The reversal of 1158382705 is 5072838511.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5072838511 = 13 ⋅390218347.

It can be written as a sum of positive squares in 2 ways, for example, as 179881744 + 978500961 = 13412^2 + 31281^2 .

It is a de Polignac number, because none of the positive numbers 2^k-1158382705 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 115838266 + ... + 115838275.

It is an arithmetic number, because the mean of its divisors is an integer number (347514813).

Almost surely, 2^1158382705 is an apocalyptic number.

It is an amenable number.

1158382705 is a deficient number, since it is larger than the sum of its proper divisors (231676547).

1158382705 is an equidigital number, since it uses as much as digits as its factorization.

1158382705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231676546.

The product of its (nonzero) digits is 67200, while the sum is 40.

The square root of 1158382705 is about 34035.0217423171. The cubic root of 1158382705 is about 1050.2290369601.

The spelling of 1158382705 in words is "one billion, one hundred fifty-eight million, three hundred eighty-two thousand, seven hundred five".