140709739 has 2 divisors, whose sum is σ = 140709740. Its totient is φ = 140709738.

The previous prime is 140709727. The next prime is 140709743. The reversal of 140709739 is 937907041.

140709739 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 140709739 - 2²¹ = 138612587 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (140709719) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70354869 + 70354870.

It is an arithmetic number, because the mean of its divisors is an integer number (70354870).

Almost surely, 2^140709739 is an apocalyptic number.

140709739 is a deficient number, since it is larger than the sum of its proper divisors (1).

140709739 is an equidigital number, since it uses as much as digits as its factorization.

140709739 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 47628, while the sum is 40.

The square root of 140709739 is about 11862.1135975002. The cubic root of 140709739 is about 520.1253876622.

The spelling of 140709739 in words is "one hundred forty million, seven hundred nine thousand, seven hundred thirty-nine".