32381189 has 2 divisors, whose sum is σ = 32381190. Its totient is φ = 32381188.

The previous prime is 32381159. The next prime is 32381191. The reversal of 32381189 is 98118323.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18130564 + 14250625 = 4258^2 + 3775^2 .

It is a cyclic number.

It is not a de Polignac number, because 32381189 - 2¹⁶ = 32315653 is a prime.

Together with 32381191, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (32381119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16190594 + 16190595.

It is an arithmetic number, because the mean of its divisors is an integer number (16190595).

Almost surely, 2^32381189 is an apocalyptic number.

It is an amenable number.

32381189 is a deficient number, since it is larger than the sum of its proper divisors (1).

32381189 is an equidigital number, since it uses as much as digits as its factorization.

32381189 is an evil number, because the sum of its binary digits is even.

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

The square root of 32381189 is about 5690.4471704779. The cubic root of 32381189 is about 318.7358622975.

The spelling of 32381189 in words is "thirty-two million, three hundred eighty-one thousand, one hundred eighty-nine".