140782349 has 2 divisors, whose sum is σ = 140782350. Its totient is φ = 140782348.

The previous prime is 140782337. The next prime is 140782391. The reversal of 140782349 is 943287041.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 114105124 + 26677225 = 10682^2 + 5165^2 .

It is a cyclic number.

It is not a de Polignac number, because 140782349 - 2⁸ = 140782093 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (140782309) 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, 70391174 + 70391175.

It is an arithmetic number, because the mean of its divisors is an integer number (70391175).

Almost surely, 2^140782349 is an apocalyptic number.

It is an amenable number.

140782349 is a deficient number, since it is larger than the sum of its proper divisors (1).

140782349 is an equidigital number, since it uses as much as digits as its factorization.

140782349 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 140782349 is about 11865.1737871807. The cubic root of 140782349 is about 520.2148384953.

The spelling of 140782349 in words is "one hundred forty million, seven hundred eighty-two thousand, three hundred forty-nine".