140560397 has 2 divisors, whose sum is σ = 140560398. Its totient is φ = 140560396.

The previous prime is 140560391. The next prime is 140560457. The reversal of 140560397 is 793065041.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 137851081 + 2709316 = 11741^2 + 1646^2 .

It is a cyclic number.

It is not a de Polignac number, because 140560397 - 2⁸ = 140560141 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (140560391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70280198 + 70280199.

It is an arithmetic number, because the mean of its divisors is an integer number (70280199).

Almost surely, 2^140560397 is an apocalyptic number.

It is an amenable number.

140560397 is a deficient number, since it is larger than the sum of its proper divisors (1).

140560397 is an equidigital number, since it uses as much as digits as its factorization.

140560397 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 22680, while the sum is 35.

The square root of 140560397 is about 11855.8170110710. The cubic root of 140560397 is about 519.9413111772.

The spelling of 140560397 in words is "one hundred forty million, five hundred sixty thousand, three hundred ninety-seven".