4121081 has 4 divisors (see below), whose sum is σ = 4338000. Its totient is φ = 3904164.

The previous prime is 4121063. The next prime is 4121087. The reversal of 4121081 is 1801214.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1801214 = 2 ⋅900607.

It is a cyclic number.

It is not a de Polignac number, because 4121081 - 2⁶ = 4121017 is a prime.

It is a super-2 number, since 2×4121081² = 33966617217122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4121087) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 108431 + ... + 108468.

It is an arithmetic number, because the mean of its divisors is an integer number (1084500).

Almost surely, 2^4121081 is an apocalyptic number.

It is an amenable number.

4121081 is a deficient number, since it is larger than the sum of its proper divisors (216919).

4121081 is a wasteful number, since it uses less digits than its factorization.

4121081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 216918.

The product of its (nonzero) digits is 64, while the sum is 17.

The square root of 4121081 is about 2030.0445807913. The cubic root of 4121081 is about 160.3259112069.

Adding to 4121081 its reverse (1801214), we get a palindrome (5922295).

The spelling of 4121081 in words is "four million, one hundred twenty-one thousand, eighty-one".