1087159887 has 32 divisors (see below), whose sum is σ = 1778757120. Its totient is φ = 658870200.

The previous prime is 1087159861. The next prime is 1087159919. The reversal of 1087159887 is 7889517801.

It is not a de Polignac number, because 1087159887 - 2⁸ = 1087159631 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1087159187) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1462 + ... + 46652.

It is an arithmetic number, because the mean of its divisors is an integer number (55586160).

Almost surely, 2^1087159887 is an apocalyptic number.

1087159887 is a deficient number, since it is larger than the sum of its proper divisors (691597233).

1087159887 is an frugal number, since it uses more digits than its factorization.

1087159887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45223 (or 45205 counting only the distinct ones).

The product of its (nonzero) digits is 1128960, while the sum is 54.

The square root of 1087159887 is about 32972.1077124287. The cubic root of 1087159887 is about 1028.2478417376.

The spelling of 1087159887 in words is "one billion, eighty-seven million, one hundred fifty-nine thousand, eight hundred eighty-seven".