2108738239 has 2 divisors, whose sum is σ = 2108738240. Its totient is φ = 2108738238.

The previous prime is 2108738227. The next prime is 2108738251. The reversal of 2108738239 is 9328378012.

It is a balanced prime because it is at equal distance from previous prime (2108738227) and next prime (2108738251).

It is a cyclic number.

It is not a de Polignac number, because 2108738239 - 2²⁷ = 1974520511 is a prime.

It is a super-2 number, since 2×2108738239² = 8893553921241642242, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2108738195 and 2108738204.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2108738209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1054369119 + 1054369120.

It is an arithmetic number, because the mean of its divisors is an integer number (1054369120).

Almost surely, 2^2108738239 is an apocalyptic number.

2108738239 is a deficient number, since it is larger than the sum of its proper divisors (1).

2108738239 is an equidigital number, since it uses as much as digits as its factorization.

2108738239 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 145152, while the sum is 43.

The square root of 2108738239 is about 45920.9999782235. Note that the first 4 decimals coincide. The cubic root of 2108738239 is about 1282.3528986059.

The spelling of 2108738239 in words is "two billion, one hundred eight million, seven hundred thirty-eight thousand, two hundred thirty-nine".