3123745 has 12 divisors (see below), whose sum is σ = 3921876. Its totient is φ = 2388320.

The previous prime is 3123727. The next prime is 3123751. The reversal of 3123745 is 5473213.

3123745 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 2099601 + 1024144 = 1449^2 + 1012^2 .

It is not a de Polignac number, because 3123745 - 2⁵ = 3123713 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2055 + ... + 3235.

It is an arithmetic number, because the mean of its divisors is an integer number (326823).

Almost surely, 2^3123745 is an apocalyptic number.

It is an amenable number.

3123745 is a deficient number, since it is larger than the sum of its proper divisors (798131).

3123745 is a wasteful number, since it uses less digits than its factorization.

3123745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1232 (or 1209 counting only the distinct ones).

The product of its digits is 2520, while the sum is 25.

The square root of 3123745 is about 1767.4119497163. The cubic root of 3123745 is about 146.1813128647.

Adding to 3123745 its reverse (5473213), we get a palindrome (8596958).

The spelling of 3123745 in words is "three million, one hundred twenty-three thousand, seven hundred forty-five".