140066071 has 2 divisors, whose sum is σ = 140066072. Its totient is φ = 140066070.

The previous prime is 140066041. The next prime is 140066089. The reversal of 140066071 is 170660041.

It is a happy number.

140066071 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 140066071 - 2⁹ = 140065559 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (140066011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70033035 + 70033036.

It is an arithmetic number, because the mean of its divisors is an integer number (70033036).

Almost surely, 2^140066071 is an apocalyptic number.

140066071 is a deficient number, since it is larger than the sum of its proper divisors (1).

140066071 is an equidigital number, since it uses as much as digits as its factorization.

140066071 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1008, while the sum is 25.

The square root of 140066071 is about 11834.9512462029. The cubic root of 140066071 is about 519.3310814524.

The spelling of 140066071 in words is "one hundred forty million, sixty-six thousand, seventy-one".