2105412539 has 2 divisors, whose sum is σ = 2105412540. Its totient is φ = 2105412538.

The previous prime is 2105412511. The next prime is 2105412559. The reversal of 2105412539 is 9352145012.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2105412539 is a prime.

It is not a weakly prime, because it can be changed into another prime (2105412559) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1052706269 + 1052706270.

It is an arithmetic number, because the mean of its divisors is an integer number (1052706270).

Almost surely, 2^2105412539 is an apocalyptic number.

2105412539 is a deficient number, since it is larger than the sum of its proper divisors (1).

2105412539 is an equidigital number, since it uses as much as digits as its factorization.

2105412539 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10800, while the sum is 32.

The square root of 2105412539 is about 45884.7745880919. The cubic root of 2105412539 is about 1281.6784091739.

The spelling of 2105412539 in words is "two billion, one hundred five million, four hundred twelve thousand, five hundred thirty-nine".