40493147 has 2 divisors, whose sum is σ = 40493148. Its totient is φ = 40493146.

The previous prime is 40493129. The next prime is 40493149. The reversal of 40493147 is 74139404.

It is a happy number.

40493147 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 40493147 - 2⁶ = 40493083 is a prime.

Together with 40493149, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (40493149) 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, 20246573 + 20246574.

It is an arithmetic number, because the mean of its divisors is an integer number (20246574).

Almost surely, 2^40493147 is an apocalyptic number.

40493147 is a deficient number, since it is larger than the sum of its proper divisors (1).

40493147 is an equidigital number, since it uses as much as digits as its factorization.

40493147 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12096, while the sum is 32.

The square root of 40493147 is about 6363.4225853702. The cubic root of 40493147 is about 343.3949019778.

The spelling of 40493147 in words is "forty million, four hundred ninety-three thousand, one hundred forty-seven".