99190 has 32 divisors (see below), whose sum is σ = 221760. Its totient is φ = 31104.

The previous prime is 99181. The next prime is 99191. The reversal of 99190 is 9199.

It is a super-2 number, since 2×99190² = 19677312200, which contains 22 as substring.

It is a Smith number, since the sum of its digits (28) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99191) by changing a digit.

99190 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 856 + ... + 964.

It is an arithmetic number, because the mean of its divisors is an integer number (6930).

2⁹⁹¹⁹⁰ is an apocalyptic number.

99190 is an abundant number, since it is smaller than the sum of its proper divisors (122570).

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

It is a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (110880).

99190 is a wasteful number, since it uses less digits than its factorization.

99190 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136.

The product of its (nonzero) digits is 729, while the sum is 28.

The square root of 99190 is about 314.9444395445. The cubic root of 99190 is about 46.2902255348.

It can be divided in two parts, 991 and 90, that added together give a triangular number (1081 = T₄₆).

The spelling of 99190 in words is "ninety-nine thousand, one hundred ninety".