40186087 has 2 divisors, whose sum is σ = 40186088. Its totient is φ = 40186086.

The previous prime is 40186061. The next prime is 40186103. The reversal of 40186087 is 78068104.

It is a happy number.

40186087 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40186087 is a prime.

It is a super-2 number, since 2×40186087² = 3229843176743138, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40186057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20093043 + 20093044.

It is an arithmetic number, because the mean of its divisors is an integer number (20093044).

Almost surely, 2^40186087 is an apocalyptic number.

40186087 is a deficient number, since it is larger than the sum of its proper divisors (1).

40186087 is an equidigital number, since it uses as much as digits as its factorization.

40186087 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10752, while the sum is 34.

The square root of 40186087 is about 6339.2497190125. The cubic root of 40186087 is about 342.5247095321.

The spelling of 40186087 in words is "forty million, one hundred eighty-six thousand, eighty-seven".