2171115 has 12 divisors (see below), whose sum is σ = 3763344. Its totient is φ = 1157904.

The previous prime is 2171107. The next prime is 2171119. The reversal of 2171115 is 5111712.

It is a happy number.

It is not a de Polignac number, because 2171115 - 2³ = 2171107 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2171119) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 24079 + ... + 24168.

It is an arithmetic number, because the mean of its divisors is an integer number (313612).

2^2171115 is an apocalyptic number.

2171115 is a deficient number, since it is larger than the sum of its proper divisors (1592229).

2171115 is a wasteful number, since it uses less digits than its factorization.

2171115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48258 (or 48255 counting only the distinct ones).

The product of its digits is 70, while the sum is 18.

The square root of 2171115 is about 1473.4703933232. The cubic root of 2171115 is about 129.4874293985.

Adding to 2171115 its reverse (5111712), we get a palindrome (7282827).

The spelling of 2171115 in words is "two million, one hundred seventy-one thousand, one hundred fifteen".