1087147172 has 48 divisors (see below), whose sum is σ = 1993799808. Its totient is φ = 518192640.

The previous prime is 1087147169. The next prime is 1087147189. The reversal of 1087147172 is 2717417801.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3225788 + ... + 3226124.

It is an arithmetic number, because the mean of its divisors is an integer number (41537496).

Almost surely, 2^1087147172 is an apocalyptic number.

It is an amenable number.

1087147172 is a deficient number, since it is larger than the sum of its proper divisors (906652636).

1087147172 is a wasteful number, since it uses less digits than its factorization.

1087147172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 756 (or 754 counting only the distinct ones).

The product of its (nonzero) digits is 21952, while the sum is 38.

The square root of 1087147172 is about 32971.9148973790. The cubic root of 1087147172 is about 1028.2438330594.

The spelling of 1087147172 in words is "one billion, eighty-seven million, one hundred forty-seven thousand, one hundred seventy-two".