40006111 has 2 divisors, whose sum is σ = 40006112. Its totient is φ = 40006110.

The previous prime is 40006097. The next prime is 40006121. The reversal of 40006111 is 11160004.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40006111 - 2²³ = 31617503 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 40006091 and 40006100.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40006121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20003055 + 20003056.

It is an arithmetic number, because the mean of its divisors is an integer number (20003056).

Almost surely, 2^40006111 is an apocalyptic number.

40006111 is a deficient number, since it is larger than the sum of its proper divisors (1).

40006111 is an equidigital number, since it uses as much as digits as its factorization.

40006111 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 40006111 is about 6325.0384188557. The cubic root of 40006111 is about 342.0126045535.

Adding to 40006111 its reverse (11160004), we get a palindrome (51166115).

The spelling of 40006111 in words is "forty million, six thousand, one hundred eleven".