8190100 has 18 divisors (see below), whose sum is σ = 17772734. Its totient is φ = 3276000.

The previous prime is 8190097. The next prime is 8190113. The reversal of 8190100 is 10918.

It can be written as a sum of positive squares in 3 ways, for example, as 2256004 + 5934096 = 1502^2 + 2436^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 40851 + ... + 41050.

Almost surely, 2^8190100 is an apocalyptic number.

It is an amenable number.

8190100 is an abundant number, since it is smaller than the sum of its proper divisors (9582634).

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

8190100 is a wasteful number, since it uses less digits than its factorization.

8190100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81915 (or 81908 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 19.

The square root of 8190100 is about 2861.8350756115. The cubic root of 8190100 is about 201.5717818172.

The spelling of 8190100 in words is "eight million, one hundred ninety thousand, one hundred".