1158390158 has 16 divisors (see below), whose sum is σ = 1789789056. Its totient is φ = 561972600.

The previous prime is 1158390143. The next prime is 1158390161. The reversal of 1158390158 is 8510938511.

It is a congruent number.

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, 31616 + ... + 57587.

It is an arithmetic number, because the mean of its divisors is an integer number (111861816).

Almost surely, 2^1158390158 is an apocalyptic number.

1158390158 is a deficient number, since it is larger than the sum of its proper divisors (631398898).

1158390158 is a wasteful number, since it uses less digits than its factorization.

1158390158 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89399.

The product of its (nonzero) digits is 43200, while the sum is 41.

The square root of 1158390158 is about 34035.1312323017. The cubic root of 1158390158 is about 1050.2312893361.

The spelling of 1158390158 in words is "one billion, one hundred fifty-eight million, three hundred ninety thousand, one hundred fifty-eight".