1125168187 has 32 divisors (see below), whose sum is σ = 1404607680. Its totient is φ = 886878720.

The previous prime is 1125168139. The next prime is 1125168193. The reversal of 1125168187 is 7818615211.

It is not a de Polignac number, because 1125168187 - 2¹¹ = 1125166139 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1125168127) 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 31 ways as a sum of consecutive naturals, for example, 149773 + ... + 157105.

It is an arithmetic number, because the mean of its divisors is an integer number (43893990).

Almost surely, 2^1125168187 is an apocalyptic number.

1125168187 is a deficient number, since it is larger than the sum of its proper divisors (279439493).

1125168187 is a wasteful number, since it uses less digits than its factorization.

1125168187 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7423.

The product of its digits is 26880, while the sum is 40.

The square root of 1125168187 is about 33543.5267525643. The cubic root of 1125168187 is about 1040.0937375446.

The spelling of 1125168187 in words is "one billion, one hundred twenty-five million, one hundred sixty-eight thousand, one hundred eighty-seven".