1158552178 has 12 divisors (see below), whose sum is σ = 2021555502. Its totient is φ = 496522320.

The previous prime is 1158552163. The next prime is 1158552203. The reversal of 1158552178 is 8712558511.

It can be written as a sum of positive squares in only one way, i.e., 760270329 + 398281849 = 27573^2 + 19957^2 .

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 5 ways as a sum of consecutive naturals, for example, 5910883 + ... + 5911078.

Almost surely, 2^1158552178 is an apocalyptic number.

1158552178 is a deficient number, since it is larger than the sum of its proper divisors (863003324).

1158552178 is a wasteful number, since it uses less digits than its factorization.

1158552178 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11821977 (or 11821970 counting only the distinct ones).

The product of its digits is 112000, while the sum is 43.

The square root of 1158552178 is about 34037.5113367590. The cubic root of 1158552178 is about 1050.2802511186.

The spelling of 1158552178 in words is "one billion, one hundred fifty-eight million, five hundred fifty-two thousand, one hundred seventy-eight".