8021157 has 8 divisors (see below), whose sum is σ = 11040000. Its totient is φ = 5174880.

The previous prime is 8021147. The next prime is 8021159. The reversal of 8021157 is 7511208.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 8021157 - 2⁷ = 8021029 is a prime.

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, 43032 + ... + 43217.

It is an arithmetic number, because the mean of its divisors is an integer number (1380000).

Almost surely, 2^8021157 is an apocalyptic number.

It is an amenable number.

8021157 is a deficient number, since it is larger than the sum of its proper divisors (3018843).

8021157 is a wasteful number, since it uses less digits than its factorization.

8021157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86283.

The product of its (nonzero) digits is 560, while the sum is 24.

The square root of 8021157 is about 2832.1647197859. The cubic root of 8021157 is about 200.1761531381.

The spelling of 8021157 in words is "eight million, twenty-one thousand, one hundred fifty-seven".