4131974191 has 2 divisors, whose sum is σ = 4131974192. Its totient is φ = 4131974190.

The previous prime is 4131974131. The next prime is 4131974207. The reversal of 4131974191 is 1914791314.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 4131974191 - 2²¹ = 4129877039 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4131974101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2065987095 + 2065987096.

It is an arithmetic number, because the mean of its divisors is an integer number (2065987096).

Almost surely, 2^4131974191 is an apocalyptic number.

4131974191 is a deficient number, since it is larger than the sum of its proper divisors (1).

4131974191 is an equidigital number, since it uses as much as digits as its factorization.

4131974191 is an evil number, because the sum of its binary digits is even.

The product of its digits is 27216, while the sum is 40.

The square root of 4131974191 is about 64280.4339671101. The cubic root of 4131974191 is about 1604.6704927485.

The spelling of 4131974191 in words is "four billion, one hundred thirty-one million, nine hundred seventy-four thousand, one hundred ninety-one".