3105745 has 8 divisors (see below), whose sum is σ = 3738600. Its totient is φ = 2476800.

The previous prime is 3105719. The next prime is 3105749. The reversal of 3105745 is 5475013.

It can be written as a sum of positive squares in 4 ways, for example, as 938961 + 2166784 = 969^2 + 1472^2 .

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

It is not a de Polignac number, because 3105745 - 2¹⁵ = 3072977 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3105749) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1231 + ... + 2779.

It is an arithmetic number, because the mean of its divisors is an integer number (467325).

Almost surely, 2^3105745 is an apocalyptic number.

It is an amenable number.

3105745 is a deficient number, since it is larger than the sum of its proper divisors (632855).

3105745 is a wasteful number, since it uses less digits than its factorization.

3105745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1955.

The product of its (nonzero) digits is 2100, while the sum is 25.

The square root of 3105745 is about 1762.3124013636. The cubic root of 3105745 is about 145.8999909334.

The spelling of 3105745 in words is "three million, one hundred five thousand, seven hundred forty-five".