4161855 has 32 divisors (see below), whose sum is σ = 7430400. Its totient is φ = 1976832.

The previous prime is 4161853. The next prime is 4161881. The reversal of 4161855 is 5581614.

It is not a de Polignac number, because 4161855 - 2¹ = 4161853 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4161851) 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, 4416 + ... + 5274.

It is an arithmetic number, because the mean of its divisors is an integer number (232200).

Almost surely, 2^4161855 is an apocalyptic number.

4161855 is a deficient number, since it is larger than the sum of its proper divisors (3268545).

4161855 is a wasteful number, since it uses less digits than its factorization.

4161855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 903.

The product of its digits is 4800, while the sum is 30.

The square root of 4161855 is about 2040.0624990426. The cubic root of 4161855 is about 160.8529320678.

The spelling of 4161855 in words is "four million, one hundred sixty-one thousand, eight hundred fifty-five".