140605271 has 2 divisors, whose sum is σ = 140605272. Its totient is φ = 140605270.

The previous prime is 140605259. The next prime is 140605303. The reversal of 140605271 is 172506041.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 140605271 - 2²⁶ = 73496407 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 140605271.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (140605211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70302635 + 70302636.

It is an arithmetic number, because the mean of its divisors is an integer number (70302636).

Almost surely, 2^140605271 is an apocalyptic number.

140605271 is a deficient number, since it is larger than the sum of its proper divisors (1).

140605271 is an equidigital number, since it uses as much as digits as its factorization.

140605271 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1680, while the sum is 26.

The square root of 140605271 is about 11857.7093487739. The cubic root of 140605271 is about 519.9966358264.

The spelling of 140605271 in words is "one hundred forty million, six hundred five thousand, two hundred seventy-one".