2136409243 has 2 divisors, whose sum is σ = 2136409244. Its totient is φ = 2136409242.

The previous prime is 2136409217. The next prime is 2136409271. The reversal of 2136409243 is 3429046312.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2136409243 - 2¹³ = 2136401051 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2136409199 and 2136409208.

It is not a weakly prime, because it can be changed into another prime (2136409273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1068204621 + 1068204622.

It is an arithmetic number, because the mean of its divisors is an integer number (1068204622).

Almost surely, 2^2136409243 is an apocalyptic number.

2136409243 is a deficient number, since it is larger than the sum of its proper divisors (1).

2136409243 is an equidigital number, since it uses as much as digits as its factorization.

2136409243 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 31104, while the sum is 34.

The square root of 2136409243 is about 46221.3072402761. The cubic root of 2136409243 is about 1287.9375819690.

The spelling of 2136409243 in words is "two billion, one hundred thirty-six million, four hundred nine thousand, two hundred forty-three".