1087981158 has 32 divisors (see below), whose sum is σ = 2385734400. Its totient is φ = 328030560.

The previous prime is 1087981157. The next prime is 1087981171. The reversal of 1087981158 is 8511897801.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1087981157) 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 15 ways as a sum of consecutive naturals, for example, 28285 + ... + 54552.

It is an arithmetic number, because the mean of its divisors is an integer number (74554200).

Almost surely, 2^1087981158 is an apocalyptic number.

1087981158 is an abundant number, since it is smaller than the sum of its proper divisors (1297753242).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1087981158 is a wasteful number, since it uses less digits than its factorization.

1087981158 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83052.

The product of its (nonzero) digits is 161280, while the sum is 48.

The square root of 1087981158 is about 32984.5593876893. The cubic root of 1087981158 is about 1028.5066989634.

The spelling of 1087981158 in words is "one billion, eighty-seven million, nine hundred eighty-one thousand, one hundred fifty-eight".