2108355049 has 2 divisors, whose sum is σ = 2108355050. Its totient is φ = 2108355048.

The previous prime is 2108355047. The next prime is 2108355077. The reversal of 2108355049 is 9405538012.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2106810000 + 1545049 = 45900^2 + 1243^2 .

It is a cyclic number.

It is not a de Polignac number, because 2108355049 - 2¹ = 2108355047 is a prime.

It is a super-2 number, since 2×2108355049² = 8890322025287584802, which contains 22 as substring.

Together with 2108355047, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 2108354999 and 2108355017.

It is not a weakly prime, because it can be changed into another prime (2108355047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1054177524 + 1054177525.

It is an arithmetic number, because the mean of its divisors is an integer number (1054177525).

Almost surely, 2^2108355049 is an apocalyptic number.

It is an amenable number.

2108355049 is a deficient number, since it is larger than the sum of its proper divisors (1).

2108355049 is an equidigital number, since it uses as much as digits as its factorization.

2108355049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 43200, while the sum is 37.

The square root of 2108355049 is about 45916.8275145398. The cubic root of 2108355049 is about 1282.2752195203.

The spelling of 2108355049 in words is "two billion, one hundred eight million, three hundred fifty-five thousand, forty-nine".