4155656 has 8 divisors (see below), whose sum is σ = 7791870. Its totient is φ = 2077824.

The previous prime is 4155653. The next prime is 4155659. The reversal of 4155656 is 6565514.

4155656 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (4155653) and next prime (4155659).

It can be written as a sum of positive squares in only one way, i.e., 3363556 + 792100 = 1834^2 + 890^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (4155653) by changing a digit.

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 as a sum of consecutive naturals, namely, 259721 + ... + 259736.

Almost surely, 2^4155656 is an apocalyptic number.

It is an amenable number.

4155656 is a deficient number, since it is larger than the sum of its proper divisors (3636214).

4155656 is a wasteful number, since it uses less digits than its factorization.

4155656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 519463 (or 519459 counting only the distinct ones).

The product of its digits is 18000, while the sum is 32.

The square root of 4155656 is about 2038.5426166750. The cubic root of 4155656 is about 160.7730299726.

The spelling of 4155656 in words is "four million, one hundred fifty-five thousand, six hundred fifty-six".