3105245 has 32 divisors (see below), whose sum is σ = 4523904. Its totient is φ = 2016000.

The previous prime is 3105211. The next prime is 3105251. The reversal of 3105245 is 5425013.

It is not a de Polignac number, because 3105245 - 2⁶ = 3105181 is a prime.

It is a Smith number, since the sum of its digits (20) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 30695 + ... + 30795.

It is an arithmetic number, because the mean of its divisors is an integer number (141372).

Almost surely, 2^3105245 is an apocalyptic number.

It is an amenable number.

3105245 is a deficient number, since it is larger than the sum of its proper divisors (1418659).

3105245 is a wasteful number, since it uses less digits than its factorization.

3105245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173.

The product of its (nonzero) digits is 600, while the sum is 20.

The square root of 3105245 is about 1762.1705365827. The cubic root of 3105245 is about 145.8921609376.

It can be divided in two parts, 310 and 5245, that added together give a palindrome (5555).

The spelling of 3105245 in words is "three million, one hundred five thousand, two hundred forty-five".