140394271 has 2 divisors, whose sum is σ = 140394272. Its totient is φ = 140394270.

The previous prime is 140394263. The next prime is 140394283. The reversal of 140394271 is 172493041.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 140394271 - 2³ = 140394263 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (140391271) 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, 70197135 + 70197136.

It is an arithmetic number, because the mean of its divisors is an integer number (70197136).

Almost surely, 2^140394271 is an apocalyptic number.

140394271 is a deficient number, since it is larger than the sum of its proper divisors (1).

140394271 is an equidigital number, since it uses as much as digits as its factorization.

140394271 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 140394271 is about 11848.8088430863. The cubic root of 140394271 is about 519.7363937582.

The spelling of 140394271 in words is "one hundred forty million, three hundred ninety-four thousand, two hundred seventy-one".