8140536091 has 2 divisors, whose sum is σ = 8140536092. Its totient is φ = 8140536090.

The previous prime is 8140536077. The next prime is 8140536133. The reversal of 8140536091 is 1906350418.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 8140536091 - 2¹¹ = 8140534043 is a prime.

It is a super-4 number, since 4×8140536091⁴ (a number of 41 digits) contains 4444 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 8140536091.

It is not a weakly prime, because it can be changed into another prime (8140530091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4070268045 + 4070268046.

It is an arithmetic number, because the mean of its divisors is an integer number (4070268046).

Almost surely, 2^8140536091 is an apocalyptic number.

8140536091 is a deficient number, since it is larger than the sum of its proper divisors (1).

8140536091 is an equidigital number, since it uses as much as digits as its factorization.

8140536091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 25920, while the sum is 37.

The square root of 8140536091 is about 90224.9194568773. The cubic root of 8140536091 is about 2011.6434247063.

The spelling of 8140536091 in words is "eight billion, one hundred forty million, five hundred thirty-six thousand, ninety-one".