40599191 has 2 divisors, whose sum is σ = 40599192. Its totient is φ = 40599190.

The previous prime is 40599187. The next prime is 40599197. The reversal of 40599191 is 19199504.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40599191 - 2² = 40599187 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40599197) 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 as a sum of consecutive naturals, namely, 20299595 + 20299596.

It is an arithmetic number, because the mean of its divisors is an integer number (20299596).

Almost surely, 2^40599191 is an apocalyptic number.

40599191 is a deficient number, since it is larger than the sum of its proper divisors (1).

40599191 is an equidigital number, since it uses as much as digits as its factorization.

40599191 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14580, while the sum is 38.

The square root of 40599191 is about 6371.7494457959. The cubic root of 40599191 is about 343.6944030856.

The spelling of 40599191 in words is "forty million, five hundred ninety-nine thousand, one hundred ninety-one".