8102019 has 8 divisors (see below), whose sum is σ = 10858320. Its totient is φ = 5373536.

The previous prime is 8102009. The next prime is 8102041. The reversal of 8102019 is 9102018.

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

It is a cyclic number.

It is not a de Polignac number, because 8102019 - 2²⁰ = 7053443 is a prime.

It is a super-2 number, since 2×8102019² = 131285423752722, which contains 22 as substring.

8102019 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 8101986 and 8102004.

It is not an unprimeable number, because it can be changed into a prime (8102009) 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 7 ways as a sum of consecutive naturals, for example, 6264 + ... + 7445.

It is an arithmetic number, because the mean of its divisors is an integer number (1357290).

Almost surely, 2^8102019 is an apocalyptic number.

8102019 is a deficient number, since it is larger than the sum of its proper divisors (2756301).

8102019 is a wasteful number, since it uses less digits than its factorization.

8102019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13909.

The product of its (nonzero) digits is 144, while the sum is 21.

The square root of 8102019 is about 2846.4045741953. The cubic root of 8102019 is about 200.8465698746.

Subtracting 8102019 from its reverse (9102018), we obtain a palindrome (999999).

The spelling of 8102019 in words is "eight million, one hundred two thousand, nineteen".