2129794235 has 4 divisors (see below), whose sum is σ = 2555753088. Its totient is φ = 1703835384.

The previous prime is 2129794157. The next prime is 2129794267. The reversal of 2129794235 is 5324979212.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2129794235 - 2⁸ = 2129793979 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 212979419 + ... + 212979428.

It is an arithmetic number, because the mean of its divisors is an integer number (638938272).

Almost surely, 2^2129794235 is an apocalyptic number.

2129794235 is a deficient number, since it is larger than the sum of its proper divisors (425958853).

2129794235 is an equidigital number, since it uses as much as digits as its factorization.

2129794235 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 425958852.

The product of its digits is 272160, while the sum is 44.

The square root of 2129794235 is about 46149.6937692982. The cubic root of 2129794235 is about 1286.6069184031.

The spelling of 2129794235 in words is "two billion, one hundred twenty-nine million, seven hundred ninety-four thousand, two hundred thirty-five".