3405125 has 8 divisors (see below), whose sum is σ = 4249752. Its totient is φ = 2724000.

The previous prime is 3405121. The next prime is 3405131. The reversal of 3405125 is 5215043.

It can be written as a sum of positive squares in 4 ways, for example, as 81796 + 3323329 = 286^2 + 1823^2 .

It is not a de Polignac number, because 3405125 - 2² = 3405121 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3405097 and 3405106.

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 7 ways as a sum of consecutive naturals, for example, 13496 + ... + 13745.

It is an arithmetic number, because the mean of its divisors is an integer number (531219).

Almost surely, 2^3405125 is an apocalyptic number.

It is an amenable number.

3405125 is a deficient number, since it is larger than the sum of its proper divisors (844627).

3405125 is an equidigital number, since it uses as much as digits as its factorization.

3405125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27256 (or 27246 counting only the distinct ones).

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

The square root of 3405125 is about 1845.2980789022. The cubic root of 3405125 is about 150.4449749728. Note that the first 3 decimals are identical.

The spelling of 3405125 in words is "three million, four hundred five thousand, one hundred twenty-five".