1087109520 has 160 divisors (see below), whose sum is σ = 3900702720. Its totient is φ = 245306880.

The previous prime is 1087109501. The next prime is 1087109521. The reversal of 1087109520 is 259017801.

It is not an unprimeable number, because it can be changed into a prime (1087109521) 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, 128625 + ... + 136815.

It is an arithmetic number, because the mean of its divisors is an integer number (24379392).

Almost surely, 2^1087109520 is an apocalyptic number.

1087109520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1087109520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1950351360).

1087109520 is an abundant number, since it is smaller than the sum of its proper divisors (2813593200).

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

1087109520 is a wasteful number, since it uses less digits than its factorization.

1087109520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8293 (or 8287 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 33.

The square root of 1087109520 is about 32971.3439216541. The cubic root of 1087109520 is about 1028.2319622705.

The spelling of 1087109520 in words is "one billion, eighty-seven million, one hundred nine thousand, five hundred twenty".