140240449 has 2 divisors, whose sum is σ = 140240450. Its totient is φ = 140240448.

The previous prime is 140240437. The next prime is 140240479. The reversal of 140240449 is 944042041.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 81993025 + 58247424 = 9055^2 + 7632^2 .

It is a cyclic number.

It is not a de Polignac number, because 140240449 - 2⁹ = 140239937 is a prime.

It is not a weakly prime, because it can be changed into another prime (140240479) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70120224 + 70120225.

It is an arithmetic number, because the mean of its divisors is an integer number (70120225).

Almost surely, 2^140240449 is an apocalyptic number.

It is an amenable number.

140240449 is a deficient number, since it is larger than the sum of its proper divisors (1).

140240449 is an equidigital number, since it uses as much as digits as its factorization.

140240449 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4608, while the sum is 28.

The square root of 140240449 is about 11842.3160319255. The cubic root of 140240449 is about 519.5465092125.

The spelling of 140240449 in words is "one hundred forty million, two hundred forty thousand, four hundred forty-nine".