4131040091 has 2 divisors, whose sum is σ = 4131040092. Its totient is φ = 4131040090.

The previous prime is 4131040037. The next prime is 4131040117. The reversal of 4131040091 is 1900401314.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 4131040091 - 2⁶ = 4131040027 is a prime.

It is not a weakly prime, because it can be changed into another prime (4131040391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2065520045 + 2065520046.

It is an arithmetic number, because the mean of its divisors is an integer number (2065520046).

Almost surely, 2^4131040091 is an apocalyptic number.

4131040091 is a deficient number, since it is larger than the sum of its proper divisors (1).

4131040091 is an equidigital number, since it uses as much as digits as its factorization.

4131040091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 4131040091 is about 64273.1677374003. The cubic root of 4131040091 is about 1604.5495630101.

The spelling of 4131040091 in words is "four billion, one hundred thirty-one million, forty thousand, ninety-one".