2139705435 has 16 divisors (see below), whose sum is σ = 3912604416. Its totient is φ = 978151008.

The previous prime is 2139705397. The next prime is 2139705481. The reversal of 2139705435 is 5345079312.

It is a happy number.

It is not a de Polignac number, because 2139705435 - 2⁷ = 2139705307 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2139705393 and 2139705402.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10188969 + ... + 10189178.

It is an arithmetic number, because the mean of its divisors is an integer number (244537776).

Almost surely, 2^2139705435 is an apocalyptic number.

2139705435 is a deficient number, since it is larger than the sum of its proper divisors (1772898981).

2139705435 is a wasteful number, since it uses less digits than its factorization.

2139705435 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20378162.

The product of its (nonzero) digits is 113400, while the sum is 39.

The square root of 2139705435 is about 46256.9501264405. The cubic root of 2139705435 is about 1288.5996130747.

The spelling of 2139705435 in words is "two billion, one hundred thirty-nine million, seven hundred five thousand, four hundred thirty-five".