266115 has 16 divisors (see below), whose sum is σ = 432288. Its totient is φ = 139776.

The previous prime is 266111. The next prime is 266117. The reversal of 266115 is 511662.

It is a happy number.

It is not a de Polignac number, because 266115 - 2² = 266111 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 266091 and 266100.

It is not an unprimeable number, because it can be changed into a prime (266111) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1617 + ... + 1773.

It is an arithmetic number, because the mean of its divisors is an integer number (27018).

2²⁶⁶¹¹⁵ is an apocalyptic number.

266115 is a deficient number, since it is larger than the sum of its proper divisors (166173).

266115 is a wasteful number, since it uses less digits than its factorization.

266115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 278.

The product of its digits is 360, while the sum is 21.

The square root of 266115 is about 515.8633539999. The cubic root of 266115 is about 64.3215426383.

Adding to 266115 its reverse (511662), we get a palindrome (777777).

The spelling of 266115 in words is "two hundred sixty-six thousand, one hundred fifteen".