8109012 has 12 divisors (see below), whose sum is σ = 18921056. Its totient is φ = 2703000.

The previous prime is 8109007. The next prime is 8109061. The reversal of 8109012 is 2109018.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×8109012² = 131512151232288, which contains 22 as substring.

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

It is a self number, because there is not a number n which added to its sum of digits gives 8109012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 337864 + ... + 337887.

Almost surely, 2^8109012 is an apocalyptic number.

It is an amenable number.

8109012 is an abundant number, since it is smaller than the sum of its proper divisors (10812044).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8109012 is a wasteful number, since it uses less digits than its factorization.

8109012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 675758 (or 675756 counting only the distinct ones).

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

The square root of 8109012 is about 2847.6327010343. The cubic root of 8109012 is about 200.9043380337.

The spelling of 8109012 in words is "eight million, one hundred nine thousand, twelve".