4101985 has 8 divisors (see below), whose sum is σ = 5037120. Its totient is φ = 3205104.

The previous prime is 4101983. The next prime is 4101989. The reversal of 4101985 is 5891014.

It is a happy number.

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 4101985 - 2¹ = 4101983 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4101983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9325 + ... + 9754.

It is an arithmetic number, because the mean of its divisors is an integer number (629640).

Almost surely, 2^4101985 is an apocalyptic number.

It is an amenable number.

4101985 is a deficient number, since it is larger than the sum of its proper divisors (935135).

4101985 is a wasteful number, since it uses less digits than its factorization.

4101985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19127.

The product of its (nonzero) digits is 1440, while the sum is 28.

The square root of 4101985 is about 2025.3357746310. The cubic root of 4101985 is about 160.0778917618.

Adding to 4101985 its reverse (5891014), we get a palindrome (9992999).

The spelling of 4101985 in words is "four million, one hundred one thousand, nine hundred eighty-five".