8005157 has 4 divisors (see below), whose sum is σ = 8012160. Its totient is φ = 7998156.

The previous prime is 8005141. The next prime is 8005169. The reversal of 8005157 is 7515008.

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 8005157 - 2⁴ = 8005141 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8005117) 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, 1343 + ... + 4220.

It is an arithmetic number, because the mean of its divisors is an integer number (2003040).

Almost surely, 2^8005157 is an apocalyptic number.

It is an amenable number.

8005157 is a deficient number, since it is larger than the sum of its proper divisors (7003).

8005157 is a wasteful number, since it uses less digits than its factorization.

8005157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7002.

The product of its (nonzero) digits is 1400, while the sum is 26.

The square root of 8005157 is about 2829.3386152951. The cubic root of 8005157 is about 200.0429657691.

It can be divided in two parts, 80051 and 57, that added together give a palindrome (80108).

The spelling of 8005157 in words is "eight million, five thousand, one hundred fifty-seven".