1158170078 has 16 divisors (see below), whose sum is σ = 1921456320. Its totient is φ = 520092576.

The previous prime is 1158170077. The next prime is 1158170081. The reversal of 1158170078 is 8700718511.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1158170077) by changing a digit.

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, 600998 + ... + 602921.

It is an arithmetic number, because the mean of its divisors is an integer number (120091020).

Almost surely, 2^1158170078 is an apocalyptic number.

1158170078 is a deficient number, since it is larger than the sum of its proper divisors (763286242).

1158170078 is a wasteful number, since it uses less digits than its factorization.

1158170078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1203971.

The product of its (nonzero) digits is 15680, while the sum is 38.

The square root of 1158170078 is about 34031.8979488362. The cubic root of 1158170078 is about 1050.1647747455.

Adding to 1158170078 its reverse (8700718511), we get a palindrome (9858888589).

The spelling of 1158170078 in words is "one billion, one hundred fifty-eight million, one hundred seventy thousand, seventy-eight".