2136908129 has 2 divisors, whose sum is σ = 2136908130. Its totient is φ = 2136908128.

The previous prime is 2136908107. The next prime is 2136908149. The reversal of 2136908129 is 9218096312.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2102039104 + 34869025 = 45848^2 + 5905^2 .

It is a cyclic number.

It is not a de Polignac number, because 2136908129 - 2⁸ = 2136907873 is a prime.

It is not a weakly prime, because it can be changed into another prime (2136908149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1068454064 + 1068454065.

It is an arithmetic number, because the mean of its divisors is an integer number (1068454065).

Almost surely, 2^2136908129 is an apocalyptic number.

It is an amenable number.

2136908129 is a deficient number, since it is larger than the sum of its proper divisors (1).

2136908129 is an equidigital number, since it uses as much as digits as its factorization.

2136908129 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 46656, while the sum is 41.

The square root of 2136908129 is about 46226.7036354530. The cubic root of 2136908129 is about 1288.0378255628.

The spelling of 2136908129 in words is "two billion, one hundred thirty-six million, nine hundred eight thousand, one hundred twenty-nine".