40931147 has 2 divisors, whose sum is σ = 40931148. Its totient is φ = 40931146.

The previous prime is 40931131. The next prime is 40931153. The reversal of 40931147 is 74113904.

40931147 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 not a de Polignac number, because 40931147 - 2⁴ = 40931131 is a prime.

It is not a weakly prime, because it can be changed into another prime (40931167) 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, 20465573 + 20465574.

It is an arithmetic number, because the mean of its divisors is an integer number (20465574).

Almost surely, 2^40931147 is an apocalyptic number.

40931147 is a deficient number, since it is larger than the sum of its proper divisors (1).

40931147 is an equidigital number, since it uses as much as digits as its factorization.

40931147 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3024, while the sum is 29.

The square root of 40931147 is about 6397.7454622703. The cubic root of 40931147 is about 344.6285914131.

The spelling of 40931147 in words is "forty million, nine hundred thirty-one thousand, one hundred forty-seven".