2102656349 has 2 divisors, whose sum is σ = 2102656350. Its totient is φ = 2102656348.

The previous prime is 2102656319. The next prime is 2102656351. The reversal of 2102656349 is 9436562012.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2099289124 + 3367225 = 45818^2 + 1835^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2102656349 is a prime.

Together with 2102656351, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2102656319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1051328174 + 1051328175.

It is an arithmetic number, because the mean of its divisors is an integer number (1051328175).

Almost surely, 2^2102656349 is an apocalyptic number.

It is an amenable number.

2102656349 is a deficient number, since it is larger than the sum of its proper divisors (1).

2102656349 is an equidigital number, since it uses as much as digits as its factorization.

2102656349 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 77760, while the sum is 38.

The square root of 2102656349 is about 45854.7309336779. The cubic root of 2102656349 is about 1281.1188843374.

The spelling of 2102656349 in words is "two billion, one hundred two million, six hundred fifty-six thousand, three hundred forty-nine".