4239132191 has 4 divisors (see below), whose sum is σ = 4844722512. Its totient is φ = 3633541872.

The previous prime is 4239132151. The next prime is 4239132193. The reversal of 4239132191 is 1912319324.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 4239132191 - 2⁶ = 4239132127 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4239132193) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 302795150 + ... + 302795163.

It is an arithmetic number, because the mean of its divisors is an integer number (1211180628).

Almost surely, 2^4239132191 is an apocalyptic number.

4239132191 is a deficient number, since it is larger than the sum of its proper divisors (605590321).

4239132191 is an equidigital number, since it uses as much as digits as its factorization.

4239132191 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 605590320.

The product of its digits is 11664, while the sum is 35.

The square root of 4239132191 is about 65108.6184080111. The cubic root of 4239132191 is about 1618.4240365191.

The spelling of 4239132191 in words is "four billion, two hundred thirty-nine million, one hundred thirty-two thousand, one hundred ninety-one".