2105015239 has 2 divisors, whose sum is σ = 2105015240. Its totient is φ = 2105015238.

The previous prime is 2105015233. The next prime is 2105015261. The reversal of 2105015239 is 9325105012.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2105015239 - 2²⁹ = 1568144327 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2105015233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1052507619 + 1052507620.

It is an arithmetic number, because the mean of its divisors is an integer number (1052507620).

Almost surely, 2^2105015239 is an apocalyptic number.

2105015239 is a deficient number, since it is larger than the sum of its proper divisors (1).

2105015239 is an equidigital number, since it uses as much as digits as its factorization.

2105015239 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2700, while the sum is 28.

The square root of 2105015239 is about 45880.4450610497. The cubic root of 2105015239 is about 1281.5977847743.

The spelling of 2105015239 in words is "two billion, one hundred five million, fifteen thousand, two hundred thirty-nine".