4096121 has 4 divisors (see below), whose sum is σ = 4119972. Its totient is φ = 4072272.

The previous prime is 4096117. The next prime is 4096129. The reversal of 4096121 is 1216904.

Added to its reverse (1216904) it gives a square (5313025 = 2305²).

It is a happy number.

4096121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2805625 + 1290496 = 1675^2 + 1136^2 .

It is a cyclic number.

It is not a de Polignac number, because 4096121 - 2² = 4096117 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4096129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11666 + ... + 12011.

It is an arithmetic number, because the mean of its divisors is an integer number (1029993).

Almost surely, 2^4096121 is an apocalyptic number.

It is an amenable number.

4096121 is a deficient number, since it is larger than the sum of its proper divisors (23851).

4096121 is a wasteful number, since it uses less digits than its factorization.

4096121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23850.

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 4096121 is about 2023.8875956930. The cubic root of 4096121 is about 160.0015755053.

Adding to 4096121 its reverse (1216904), we get a square (5313025 = 2305²).

It can be divided in two parts, 4096 and 121, that multiplied together give a square (495616 = 704²).

The spelling of 4096121 in words is "four million, ninety-six thousand, one hundred twenty-one".