2143932189 has 32 divisors (see below), whose sum is σ = 3492163584. Its totient is φ = 1143246720.

The previous prime is 2143932187. The next prime is 2143932191. The reversal of 2143932189 is 9812393412.

It is an interprime number because it is at equal distance from previous prime (2143932187) and next prime (2143932191).

It is not a de Polignac number, because 2143932189 - 2¹ = 2143932187 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2143932189.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2143932187) 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, 34329 + ... + 73934.

It is an arithmetic number, because the mean of its divisors is an integer number (109130112).

Almost surely, 2^2143932189 is an apocalyptic number.

It is an amenable number.

2143932189 is a deficient number, since it is larger than the sum of its proper divisors (1348231395).

2143932189 is a wasteful number, since it uses less digits than its factorization.

2143932189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108337.

The product of its digits is 93312, while the sum is 42.

The square root of 2143932189 is about 46302.6153580983. The cubic root of 2143932189 is about 1289.4475508372.

It can be divided in two parts, 21439 and 32189, that added together give a triangular number (53628 = T₃₂₇).

The spelling of 2143932189 in words is "two billion, one hundred forty-three million, nine hundred thirty-two thousand, one hundred eighty-nine".