140708429 has 2 divisors, whose sum is σ = 140708430. Its totient is φ = 140708428.

The previous prime is 140708413. The next prime is 140708461. The reversal of 140708429 is 924807041.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 137475625 + 3232804 = 11725^2 + 1798^2 .

It is a cyclic number.

It is not a de Polignac number, because 140708429 - 2⁴ = 140708413 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (140708479) 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, 70354214 + 70354215.

It is an arithmetic number, because the mean of its divisors is an integer number (70354215).

Almost surely, 2^140708429 is an apocalyptic number.

It is an amenable number.

140708429 is a deficient number, since it is larger than the sum of its proper divisors (1).

140708429 is an equidigital number, since it uses as much as digits as its factorization.

140708429 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16128, while the sum is 35.

The square root of 140708429 is about 11862.0583795562. The cubic root of 140708429 is about 520.1237735442.

The spelling of 140708429 in words is "one hundred forty million, seven hundred eight thousand, four hundred twenty-nine".