140384297 has 2 divisors, whose sum is σ = 140384298. Its totient is φ = 140384296.

The previous prime is 140384269. The next prime is 140384303. The reversal of 140384297 is 792483041.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 111429136 + 28955161 = 10556^2 + 5381^2 .

It is a cyclic number.

It is not a de Polignac number, because 140384297 - 2¹⁸ = 140122153 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 140384297.

It is not a weakly prime, because it can be changed into another prime (140384197) 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, 70192148 + 70192149.

It is an arithmetic number, because the mean of its divisors is an integer number (70192149).

Almost surely, 2^140384297 is an apocalyptic number.

It is an amenable number.

140384297 is a deficient number, since it is larger than the sum of its proper divisors (1).

140384297 is an equidigital number, since it uses as much as digits as its factorization.

140384297 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48384, while the sum is 38.

The square root of 140384297 is about 11848.3879494216. The cubic root of 140384297 is about 519.7240856264.

The spelling of 140384297 in words is "one hundred forty million, three hundred eighty-four thousand, two hundred ninety-seven".