4015155 has 8 divisors (see below), whose sum is σ = 6424272. Its totient is φ = 2141408.

The previous prime is 4015147. The next prime is 4015159. The reversal of 4015155 is 5515104.

4015155 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 4015155 - 2³ = 4015147 is a prime.

It is a super-2 number, since 2×4015155² = 32242939348050, which contains 22 as substring.

It is a nialpdrome in base 13.

It is not an unprimeable number, because it can be changed into a prime (4015159) 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 in 7 ways as a sum of consecutive naturals, for example, 133824 + ... + 133853.

It is an arithmetic number, because the mean of its divisors is an integer number (803034).

Almost surely, 2^4015155 is an apocalyptic number.

4015155 is a deficient number, since it is larger than the sum of its proper divisors (2409117).

4015155 is a wasteful number, since it uses less digits than its factorization.

4015155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 267685.

The product of its (nonzero) digits is 500, while the sum is 21.

The square root of 4015155 is about 2003.7851681256. The cubic root of 4015155 is about 158.9403280690.

The spelling of 4015155 in words is "four million, fifteen thousand, one hundred fifty-five".