107861 has 4 divisors (see below), whose sum is σ = 116172. Its totient is φ = 99552.

The previous prime is 107857. The next prime is 107867. The reversal of 107861 is 168701.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 70225 + 37636 = 265^2 + 194^2 .

It is a cyclic number.

It is not a de Polignac number, because 107861 - 2² = 107857 is a prime.

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 (107867) 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, 4136 + ... + 4161.

It is an arithmetic number, because the mean of its divisors is an integer number (29043).

2¹⁰⁷⁸⁶¹ is an apocalyptic number.

It is an amenable number.

107861 is a deficient number, since it is larger than the sum of its proper divisors (8311).

107861 is an equidigital number, since it uses as much as digits as its factorization.

107861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8310.

The product of its (nonzero) digits is 336, while the sum is 23.

The square root of 107861 is about 328.4219846478. The cubic root of 107861 is about 47.6015923484.

The spelling of 107861 in words is "one hundred seven thousand, eight hundred sixty-one".