1158165434 has 16 divisors (see below), whose sum is σ = 1771230888. Its totient is φ = 567770112.

The previous prime is 1158165427. The next prime is 1158165461. The reversal of 1158165434 is 4345618511.

It can be written as a sum of positive squares in 4 ways, for example, as 1032658225 + 125507209 = 32135^2 + 11203^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 211094 + ... + 216510.

Almost surely, 2^1158165434 is an apocalyptic number.

1158165434 is a deficient number, since it is larger than the sum of its proper divisors (613065454).

1158165434 is a wasteful number, since it uses less digits than its factorization.

1158165434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7489.

The product of its digits is 57600, while the sum is 38.

The square root of 1158165434 is about 34031.8297186619. The cubic root of 1158165434 is about 1050.1633711026.

The spelling of 1158165434 in words is "one billion, one hundred fifty-eight million, one hundred sixty-five thousand, four hundred thirty-four".