3845121 has 16 divisors (see below), whose sum is σ = 5889024. Its totient is φ = 2186064.

The previous prime is 3845119. The next prime is 3845123. The reversal of 3845121 is 1215483.

It is an interprime number because it is at equal distance from previous prime (3845119) and next prime (3845123).

It is not a de Polignac number, because 3845121 - 2¹ = 3845119 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3845091 and 3845100.

It is not an unprimeable number, because it can be changed into a prime (3845123) 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, 5620 + ... + 6266.

It is an arithmetic number, because the mean of its divisors is an integer number (368064).

Almost surely, 2^3845121 is an apocalyptic number.

It is an amenable number.

3845121 is a deficient number, since it is larger than the sum of its proper divisors (2043903).

3845121 is a wasteful number, since it uses less digits than its factorization.

3845121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 940.

The product of its digits is 960, while the sum is 24.

The square root of 3845121 is about 1960.8980085665. The cubic root of 3845121 is about 156.6642859655.

The spelling of 3845121 in words is "three million, eight hundred forty-five thousand, one hundred twenty-one".