8148021 has 16 divisors (see below), whose sum is σ = 12539904. Its totient is φ = 4609584.

The previous prime is 8148013. The next prime is 8148047. The reversal of 8148021 is 1208418.

It is not a de Polignac number, because 8148021 - 2³ = 8148013 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 8147982 and 8148000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8148221) 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, 280 + ... + 4046.

It is an arithmetic number, because the mean of its divisors is an integer number (783744).

Almost surely, 2^8148021 is an apocalyptic number.

It is an amenable number.

8148021 is a deficient number, since it is larger than the sum of its proper divisors (4391883).

8148021 is a wasteful number, since it uses less digits than its factorization.

8148021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3880.

The product of its (nonzero) digits is 512, while the sum is 24.

The square root of 8148021 is about 2854.4738569481. The cubic root of 8148021 is about 201.2259778691.

The spelling of 8148021 in words is "eight million, one hundred forty-eight thousand, twenty-one".