2100605959 has 2 divisors, whose sum is σ = 2100605960. Its totient is φ = 2100605958.

The previous prime is 2100605957. The next prime is 2100605977. The reversal of 2100605959 is 9595060012.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2100605959 - 2¹ = 2100605957 is a prime.

Together with 2100605957, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2100605957) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1050302979 + 1050302980.

It is an arithmetic number, because the mean of its divisors is an integer number (1050302980).

Almost surely, 2^2100605959 is an apocalyptic number.

2100605959 is a deficient number, since it is larger than the sum of its proper divisors (1).

2100605959 is an equidigital number, since it uses as much as digits as its factorization.

2100605959 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24300, while the sum is 37.

The square root of 2100605959 is about 45832.3680274105. The cubic root of 2100605959 is about 1280.7023243281.

The spelling of 2100605959 in words is "two billion, one hundred million, six hundred five thousand, nine hundred fifty-nine".