40941139 has 2 divisors, whose sum is σ = 40941140. Its totient is φ = 40941138.

The previous prime is 40941113. The next prime is 40941193. The reversal of 40941139 is 93114904.

40941139 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

Together with next prime (40941193) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40941139 - 2⁵ = 40941107 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 40941139.

It is not a weakly prime, because it can be changed into another prime (40941839) 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, 20470569 + 20470570.

It is an arithmetic number, because the mean of its divisors is an integer number (20470570).

Almost surely, 2^40941139 is an apocalyptic number.

40941139 is a deficient number, since it is larger than the sum of its proper divisors (1).

40941139 is an equidigital number, since it uses as much as digits as its factorization.

40941139 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3888, while the sum is 31.

The square root of 40941139 is about 6398.5263147072. The cubic root of 40941139 is about 344.6566323955.

The spelling of 40941139 in words is "forty million, nine hundred forty-one thousand, one hundred thirty-nine".