2861105 has 8 divisors (see below), whose sum is σ = 3697512. Its totient is φ = 2112768.

The previous prime is 2861081. The next prime is 2861107. The reversal of 2861105 is 5011682.

It can be written as a sum of positive squares in 4 ways, for example, as 223729 + 2637376 = 473^2 + 1624^2 .

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 2861105 - 2⁶ = 2861041 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2861107) 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, 21944 + ... + 22073.

It is an arithmetic number, because the mean of its divisors is an integer number (462189).

2^2861105 is an apocalyptic number.

It is an amenable number.

2861105 is a deficient number, since it is larger than the sum of its proper divisors (836407).

2861105 is a wasteful number, since it uses less digits than its factorization.

2861105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44035.

The product of its (nonzero) digits is 480, while the sum is 23.

The square root of 2861105 is about 1691.4801210774. The cubic root of 2861105 is about 141.9639034085.

Adding to 2861105 its reverse (5011682), we get a palindrome (7872787).

The spelling of 2861105 in words is "two million, eight hundred sixty-one thousand, one hundred five".