32138189 has 2 divisors, whose sum is σ = 32138190. Its totient is φ = 32138188.

The previous prime is 32138173. The next prime is 32138191. The reversal of 32138189 is 98183123.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20097289 + 12040900 = 4483^2 + 3470^2 .

It is a cyclic number.

It is not a de Polignac number, because 32138189 - 2⁴ = 32138173 is a prime.

It is a Sophie Germain prime.

Together with 32138191, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (32138129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16069094 + 16069095.

It is an arithmetic number, because the mean of its divisors is an integer number (16069095).

Almost surely, 2^32138189 is an apocalyptic number.

It is an amenable number.

32138189 is a deficient number, since it is larger than the sum of its proper divisors (1).

32138189 is an equidigital number, since it uses as much as digits as its factorization.

32138189 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10368, while the sum is 35.

The square root of 32138189 is about 5669.0553886869. The cubic root of 32138189 is about 317.9365569676.

The spelling of 32138189 in words is "thirty-two million, one hundred thirty-eight thousand, one hundred eighty-nine".