40041187 has 2 divisors, whose sum is σ = 40041188. Its totient is φ = 40041186.

The previous prime is 40041179. The next prime is 40041203. The reversal of 40041187 is 78114004.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40041187 - 2³ = 40041179 is a prime.

It is not a weakly prime, because it can be changed into another prime (40041587) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20020593 + 20020594.

It is an arithmetic number, because the mean of its divisors is an integer number (20020594).

Almost surely, 2^40041187 is an apocalyptic number.

40041187 is a deficient number, since it is larger than the sum of its proper divisors (1).

40041187 is an equidigital number, since it uses as much as digits as its factorization.

40041187 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 896, while the sum is 25.

The square root of 40041187 is about 6327.8106008319. The cubic root of 40041187 is about 342.1125303690.

The spelling of 40041187 in words is "forty million, forty-one thousand, one hundred eighty-seven".