140035397 has 2 divisors, whose sum is σ = 140035398. Its totient is φ = 140035396.

The previous prime is 140035393. The next prime is 140035421. The reversal of 140035397 is 793530041.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 109851361 + 30184036 = 10481^2 + 5494^2 .

It is a cyclic number.

It is not a de Polignac number, because 140035397 - 2² = 140035393 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (140035393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70017698 + 70017699.

It is an arithmetic number, because the mean of its divisors is an integer number (70017699).

Almost surely, 2^140035397 is an apocalyptic number.

It is an amenable number.

140035397 is a deficient number, since it is larger than the sum of its proper divisors (1).

140035397 is an equidigital number, since it uses as much as digits as its factorization.

140035397 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11340, while the sum is 32.

The square root of 140035397 is about 11833.6552679212. The cubic root of 140035397 is about 519.2931680960.

The spelling of 140035397 in words is "one hundred forty million, thirty-five thousand, three hundred ninety-seven".