2015213171 has 2 divisors, whose sum is σ = 2015213172. Its totient is φ = 2015213170.

The previous prime is 2015213153. The next prime is 2015213227. The reversal of 2015213171 is 1713125102.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2015213171 - 2¹⁴ = 2015196787 is a prime.

It is a super-2 number, since 2×2015213171² = 8122168249143750482, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2015213071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1007606585 + 1007606586.

It is an arithmetic number, because the mean of its divisors is an integer number (1007606586).

Almost surely, 2^2015213171 is an apocalyptic number.

2015213171 is a deficient number, since it is larger than the sum of its proper divisors (1).

2015213171 is an equidigital number, since it uses as much as digits as its factorization.

2015213171 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 420, while the sum is 23.

The square root of 2015213171 is about 44891.1257488604. The cubic root of 2015213171 is about 1263.1075497688.

Adding to 2015213171 its reverse (1713125102), we get a palindrome (3728338273).

The spelling of 2015213171 in words is "two billion, fifteen million, two hundred thirteen thousand, one hundred seventy-one".