4181855 has 8 divisors (see below), whose sum is σ = 5100864. Its totient is φ = 3290400.

The previous prime is 4181839. The next prime is 4181857. The reversal of 4181855 is 5581814.

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

It is not a de Polignac number, because 4181855 - 2⁴ = 4181839 is a prime.

It is a super-2 number, since 2×4181855² = 34975822482050, which contains 22 as substring.

It is a Duffinian number.

It is a plaindrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4181857) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6551 + ... + 7160.

It is an arithmetic number, because the mean of its divisors is an integer number (637608).

Almost surely, 2^4181855 is an apocalyptic number.

4181855 is a deficient number, since it is larger than the sum of its proper divisors (919009).

4181855 is a wasteful number, since it uses less digits than its factorization.

4181855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13777.

The product of its digits is 6400, while the sum is 32.

The square root of 4181855 is about 2044.9584347854. The cubic root of 4181855 is about 161.1101826696.

The spelling of 4181855 in words is "four million, one hundred eighty-one thousand, eight hundred fifty-five".