2106453659 has 2 divisors, whose sum is σ = 2106453660. Its totient is φ = 2106453658.

The previous prime is 2106453611. The next prime is 2106453673. The reversal of 2106453659 is 9563546012.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2106453659 - 2²⁴ = 2089676443 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (2106453859) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1053226829 + 1053226830.

It is an arithmetic number, because the mean of its divisors is an integer number (1053226830).

Almost surely, 2^2106453659 is an apocalyptic number.

2106453659 is a deficient number, since it is larger than the sum of its proper divisors (1).

2106453659 is an equidigital number, since it uses as much as digits as its factorization.

2106453659 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 194400, while the sum is 41.

The square root of 2106453659 is about 45896.1181256106. The cubic root of 2106453659 is about 1281.8896363660.

The spelling of 2106453659 in words is "two billion, one hundred six million, four hundred fifty-three thousand, six hundred fifty-nine".