99190100 has 18 divisors (see below), whose sum is σ = 215242734. Its totient is φ = 39676000.

The previous prime is 99190093. The next prime is 99190103. The reversal of 99190100 is 109199.

It can be written as a sum of positive squares in 3 ways, for example, as 10942864 + 88247236 = 3308^2 + 9394^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99190103) by changing a digit.

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, 495851 + ... + 496050.

Almost surely, 2^99190100 is an apocalyptic number.

It is an amenable number.

99190100 is an abundant number, since it is smaller than the sum of its proper divisors (116052634).

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

99190100 is a wasteful number, since it uses less digits than its factorization.

99190100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 991915 (or 991908 counting only the distinct ones).

The product of its (nonzero) digits is 729, while the sum is 29.

The square root of 99190100 is about 9959.4226740309. The cubic root of 99190100 is about 462.9024109092.

Adding to 99190100 its reverse (109199), we get a palindrome (99299299).

The spelling of 99190100 in words is "ninety-nine million, one hundred ninety thousand, one hundred".