2015042171 has 2 divisors, whose sum is σ = 2015042172. Its totient is φ = 2015042170.

The previous prime is 2015042153. The next prime is 2015042189. The reversal of 2015042171 is 1712405102.

It is a balanced prime because it is at equal distance from previous prime (2015042153) and next prime (2015042189).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2015042171 is a prime.

It is not a weakly prime, because it can be changed into another prime (2015042101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1007521085 + 1007521086.

It is an arithmetic number, because the mean of its divisors is an integer number (1007521086).

Almost surely, 2^2015042171 is an apocalyptic number.

2015042171 is a deficient number, since it is larger than the sum of its proper divisors (1).

2015042171 is an equidigital number, since it uses as much as digits as its factorization.

2015042171 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 560, while the sum is 23.

The square root of 2015042171 is about 44889.2211003934. The cubic root of 2015042171 is about 1263.0718219521.

Adding to 2015042171 its reverse (1712405102), we get a palindrome (3727447273).

The spelling of 2015042171 in words is "two billion, fifteen million, forty-two thousand, one hundred seventy-one".