4181085 has 16 divisors (see below), whose sum is σ = 7433280. Its totient is φ = 2229840.

The previous prime is 4181081. The next prime is 4181087. The reversal of 4181085 is 5801814.

It is not a de Polignac number, because 4181085 - 2² = 4181081 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4181081) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15351 + ... + 15620.

It is an arithmetic number, because the mean of its divisors is an integer number (464580).

Almost surely, 2^4181085 is an apocalyptic number.

4181085 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

4181085 is a deficient number, since it is larger than the sum of its proper divisors (3252195).

4181085 is a wasteful number, since it uses less digits than its factorization.

4181085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30985 (or 30979 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 27.

The square root of 4181085 is about 2044.7701582329. The cubic root of 4181085 is about 161.1002937204.

Adding to 4181085 its reverse (5801814), we get a palindrome (9982899).

The spelling of 4181085 in words is "four million, one hundred eighty-one thousand, eighty-five".