4128135 has 32 divisors (see below), whose sum is σ = 7299072. Its totient is φ = 1975680.

The previous prime is 4128133. The next prime is 4128139. The reversal of 4128135 is 5318214.

It is not a de Polignac number, because 4128135 - 2¹ = 4128133 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4128133) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20857 + ... + 21053.

It is an arithmetic number, because the mean of its divisors is an integer number (228096).

Almost surely, 2^4128135 is an apocalyptic number.

4128135 is a deficient number, since it is larger than the sum of its proper divisors (3170937).

4128135 is a wasteful number, since it uses less digits than its factorization.

4128135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 343.

The product of its digits is 960, while the sum is 24.

The square root of 4128135 is about 2031.7812382242. The cubic root of 4128135 is about 160.4173349797.

The spelling of 4128135 in words is "four million, one hundred twenty-eight thousand, one hundred thirty-five".