40171099 has 2 divisors, whose sum is σ = 40171100. Its totient is φ = 40171098.

The previous prime is 40171093. The next prime is 40171121. The reversal of 40171099 is 99017104.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40171099 - 2¹⁷ = 40040027 is a prime.

It is a super-2 number, since 2×40171099² = 3227434389735602, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 40171099.

It is not a weakly prime, because it can be changed into another prime (40171093) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20085549 + 20085550.

It is an arithmetic number, because the mean of its divisors is an integer number (20085550).

Almost surely, 2^40171099 is an apocalyptic number.

40171099 is a deficient number, since it is larger than the sum of its proper divisors (1).

40171099 is an equidigital number, since it uses as much as digits as its factorization.

40171099 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2268, while the sum is 31.

The square root of 40171099 is about 6338.0674499409. The cubic root of 40171099 is about 342.4821210054.

The spelling of 40171099 in words is "forty million, one hundred seventy-one thousand, ninety-nine".