3405123 has 12 divisors (see below), whose sum is σ = 5177640. Its totient is φ = 2150496.

The previous prime is 3405121. The next prime is 3405131. The reversal of 3405123 is 3215043.

It is not a de Polignac number, because 3405123 - 2¹ = 3405121 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3405096 and 3405105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3405121) 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 11 ways as a sum of consecutive naturals, for example, 9786 + ... + 10127.

It is an arithmetic number, because the mean of its divisors is an integer number (431470).

Almost surely, 2^3405123 is an apocalyptic number.

3405123 is a deficient number, since it is larger than the sum of its proper divisors (1772517).

3405123 is a wasteful number, since it uses less digits than its factorization.

3405123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19938 (or 19935 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 18.

The square root of 3405123 is about 1845.2975369842. The cubic root of 3405123 is about 150.4449455182. Note that the first 3 decimals are identical.

The spelling of 3405123 in words is "three million, four hundred five thousand, one hundred twenty-three".