2101066139 has 2 divisors, whose sum is σ = 2101066140. Its totient is φ = 2101066138.

The previous prime is 2101066117. The next prime is 2101066141. The reversal of 2101066139 is 9316601012.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2101066139 - 2¹² = 2101062043 is a prime.

Together with 2101066141, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2101066109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1050533069 + 1050533070.

It is an arithmetic number, because the mean of its divisors is an integer number (1050533070).

Almost surely, 2^2101066139 is an apocalyptic number.

2101066139 is a deficient number, since it is larger than the sum of its proper divisors (1).

2101066139 is an equidigital number, since it uses as much as digits as its factorization.

2101066139 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1944, while the sum is 29.

The square root of 2101066139 is about 45837.3880036810. The cubic root of 2101066139 is about 1280.7958387037.

The spelling of 2101066139 in words is "two billion, one hundred one million, sixty-six thousand, one hundred thirty-nine".