8105018 has 4 divisors (see below), whose sum is σ = 12157530. Its totient is φ = 4052508.

The previous prime is 8105017. The next prime is 8105021.

8105018 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 6775609 + 1329409 = 2603^2 + 1153^2 .

It is an alternating number because its digits alternate between even and odd.

It is a junction number, because it is equal to n+sod(n) for n = 8104984 and 8105002.

It is not an unprimeable number, because it can be changed into a prime (8105017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2026253 + ... + 2026256.

Almost surely, 2^8105018 is an apocalyptic number.

8105018 is a deficient number, since it is larger than the sum of its proper divisors (4052512).

8105018 is a wasteful number, since it uses less digits than its factorization.

8105018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4052511.

The product of its (nonzero) digits is 320, while the sum is 23.

The square root of 8105018 is about 2846.9313303977. The cubic root of 8105018 is about 200.8713482481.

The spelling of 8105018 in words is "eight million, one hundred five thousand, eighteen".