140035429 has 2 divisors, whose sum is σ = 140035430. Its totient is φ = 140035428.

The previous prime is 140035421. The next prime is 140035433. The reversal of 140035429 is 924530041.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 139287204 + 748225 = 11802^2 + 865^2 .

It is an emirp because it is prime and its reverse (924530041) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 140035429 - 2³ = 140035421 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 140035397 and 140035406.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (140035421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70017714 + 70017715.

It is an arithmetic number, because the mean of its divisors is an integer number (70017715).

Almost surely, 2^140035429 is an apocalyptic number.

It is an amenable number.

140035429 is a deficient number, since it is larger than the sum of its proper divisors (1).

140035429 is an equidigital number, since it uses as much as digits as its factorization.

140035429 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 140035429 is about 11833.6566199970. The cubic root of 140035429 is about 519.2932076512.

The spelling of 140035429 in words is "one hundred forty million, thirty-five thousand, four hundred twenty-nine".