1087831512 has 64 divisors (see below), whose sum is σ = 3043893600. Its totient is φ = 359953920.

The previous prime is 1087831471. The next prime is 1087831559. The reversal of 1087831512 is 2151387801.

1087831512 is a `hidden beast` number, since 108 + 7 + 8 + 31 + 512 = 666.

It is a super-2 number, since 2×1087831512² = 2366754797000412288, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11212 + ... + 47972.

Almost surely, 2^1087831512 is an apocalyptic number.

1087831512 is a gapful number since it is divisible by the number (12) 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 1087831512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1521946800).

1087831512 is an abundant number, since it is smaller than the sum of its proper divisors (1956062088).

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

1087831512 is a wasteful number, since it uses less digits than its factorization.

1087831512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36913 (or 36903 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 36.

The square root of 1087831512 is about 32982.2908846551. The cubic root of 1087831512 is about 1028.4595415993.

The spelling of 1087831512 in words is "one billion, eighty-seven million, eight hundred thirty-one thousand, five hundred twelve".