32138191 has 2 divisors, whose sum is σ = 32138192. Its totient is φ = 32138190.

The previous prime is 32138189. The next prime is 32138201. The reversal of 32138191 is 19183123.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 32138191 - 2¹ = 32138189 is a prime.

Together with 32138189, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (32148191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16069095 + 16069096.

It is an arithmetic number, because the mean of its divisors is an integer number (16069096).

Almost surely, 2^32138191 is an apocalyptic number.

32138191 is a deficient number, since it is larger than the sum of its proper divisors (1).

32138191 is an equidigital number, since it uses as much as digits as its factorization.

32138191 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1296, while the sum is 28.

The square root of 32138191 is about 5669.0555650831. The cubic root of 32138191 is about 317.9365635628.

The spelling of 32138191 in words is "thirty-two million, one hundred thirty-eight thousand, one hundred ninety-one".