340505071 has 2 divisors, whose sum is σ = 340505072. Its totient is φ = 340505070.

The previous prime is 340505057. The next prime is 340505129. The reversal of 340505071 is 170505043.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 340505071 - 2⁷ = 340504943 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (340505021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 170252535 + 170252536.

It is an arithmetic number, because the mean of its divisors is an integer number (170252536).

Almost surely, 2^340505071 is an apocalyptic number.

340505071 is a deficient number, since it is larger than the sum of its proper divisors (1).

340505071 is an equidigital number, since it uses as much as digits as its factorization.

340505071 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2100, while the sum is 25.

The square root of 340505071 is about 18452.7794925317. The cubic root of 340505071 is about 698.2986375463.

The spelling of 340505071 in words is "three hundred forty million, five hundred five thousand, seventy-one".