3905156 has 12 divisors (see below), whose sum is σ = 6856668. Its totient is φ = 1946112.

The previous prime is 3905149. The next prime is 3905173. The reversal of 3905156 is 6515093.

3905156 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 722500 + 3182656 = 850^2 + 1784^2 .

It is an Ulam 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 3 ways as a sum of consecutive naturals, for example, 101 + ... + 2796.

It is an arithmetic number, because the mean of its divisors is an integer number (571389).

Almost surely, 2^3905156 is an apocalyptic number.

It is an amenable number.

3905156 is a deficient number, since it is larger than the sum of its proper divisors (2951512).

3905156 is a wasteful number, since it uses less digits than its factorization.

3905156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3238 (or 3236 counting only the distinct ones).

The product of its (nonzero) digits is 4050, while the sum is 29.

The square root of 3905156 is about 1976.1467556839. The cubic root of 3905156 is about 157.4754274254.

The spelling of 3905156 in words is "three million, nine hundred five thousand, one hundred fifty-six".