4112921 has 4 divisors (see below), whose sum is σ = 4117200. Its totient is φ = 4108644.

The previous prime is 4112917. The next prime is 4112939. The reversal of 4112921 is 1292114.

4112921 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, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 4112921 - 2² = 4112917 is a prime.

It is a super-2 number, since 2×4112921² = 33832238304482, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4112893 and 4112902.

It is not an unprimeable number, because it can be changed into a prime (4112971) 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, 50 + ... + 2868.

It is an arithmetic number, because the mean of its divisors is an integer number (1029300).

Almost surely, 2^4112921 is an apocalyptic number.

It is an amenable number.

4112921 is a deficient number, since it is larger than the sum of its proper divisors (4279).

4112921 is a wasteful number, since it uses less digits than its factorization.

4112921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4278.

The product of its digits is 144, while the sum is 20.

The square root of 4112921 is about 2028.0337768390. The cubic root of 4112921 is about 160.2200228194.

The spelling of 4112921 in words is "four million, one hundred twelve thousand, nine hundred twenty-one".