11611171 has 8 divisors (see below), whose sum is σ = 13641264. Its totient is φ = 9743520.

The previous prime is 11611163. The next prime is 11611177. The reversal of 11611171 is 17111611.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11611171 - 2³ = 11611163 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11611177) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40456 + ... + 40741.

It is an arithmetic number, because the mean of its divisors is an integer number (1705158).

Almost surely, 2^11611171 is an apocalyptic number.

11611171 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

11611171 is a deficient number, since it is larger than the sum of its proper divisors (2030093).

11611171 is a wasteful number, since it uses less digits than its factorization.

11611171 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81221.

The product of its digits is 42, while the sum is 19.

The square root of 11611171 is about 3407.5168378161. The cubic root of 11611171 is about 226.4428820266.

Adding to 11611171 its reverse (17111611), we get a palindrome (28722782).

It can be divided in two parts, 1161 and 1171, that multiplied together give a palindrome (1359531).

The spelling of 11611171 in words is "eleven million, six hundred eleven thousand, one hundred seventy-one".