110861 has 4 divisors (see below), whose sum is σ = 112800. Its totient is φ = 108924.

The previous prime is 110849. The next prime is 110863. The reversal of 110861 is 168011.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 168011 = 17 ⋅9883.

It is a cyclic number.

It is not a de Polignac number, because 110861 - 2¹⁴ = 94477 is a prime.

It is a super-2 number, since 2×110861² = 24580322642, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (110863) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 881 + ... + 998.

It is an arithmetic number, because the mean of its divisors is an integer number (28200).

2¹¹⁰⁸⁶¹ is an apocalyptic number.

It is an amenable number.

110861 is a deficient number, since it is larger than the sum of its proper divisors (1939).

110861 is an equidigital number, since it uses as much as digits as its factorization.

110861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1938.

The product of its (nonzero) digits is 48, while the sum is 17.

The square root of 110861 is about 332.9579553037. The cubic root of 110861 is about 48.0388863125.

Adding to 110861 its reverse (168011), we get a palindrome (278872).

The spelling of 110861 in words is "one hundred ten thousand, eight hundred sixty-one".