8021158 has 16 divisors (see below), whose sum is σ = 12864096. Its totient is φ = 3741760.

The previous prime is 8021147. The next prime is 8021159. The reversal of 8021158 is 8511208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8021159) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 241 + ... + 4012.

It is an arithmetic number, because the mean of its divisors is an integer number (804006).

Almost surely, 2^8021158 is an apocalyptic number.

8021158 is a deficient number, since it is larger than the sum of its proper divisors (4842938).

8021158 is a wasteful number, since it uses less digits than its factorization.

8021158 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4319.

The product of its (nonzero) digits is 640, while the sum is 25.

The square root of 8021158 is about 2832.1648963293. The cubic root of 8021158 is about 200.1761614568.

The spelling of 8021158 in words is "eight million, twenty-one thousand, one hundred fifty-eight".