1152172189 has 8 divisors (see below), whose sum is σ = 1374019200. Its totient is φ = 944637936.

The previous prime is 1152172187. The next prime is 1152172199. The reversal of 1152172189 is 9812712511.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1152172189 - 2¹ = 1152172187 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1152172187) 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 7 ways as a sum of consecutive naturals, for example, 3578014 + ... + 3578335.

It is an arithmetic number, because the mean of its divisors is an integer number (171752400).

Almost surely, 2^1152172189 is an apocalyptic number.

It is an amenable number.

1152172189 is a deficient number, since it is larger than the sum of its proper divisors (221847011).

1152172189 is an equidigital number, since it uses as much as digits as its factorization.

1152172189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7156379.

The product of its digits is 10080, while the sum is 37.

The square root of 1152172189 is about 33943.6619857080. The cubic root of 1152172189 is about 1048.3487845769.

The spelling of 1152172189 in words is "one billion, one hundred fifty-two million, one hundred seventy-two thousand, one hundred eighty-nine".