199129 has 4 divisors (see below), whose sum is σ = 227584. Its totient is φ = 170676.

The previous prime is 199109. The next prime is 199151. The reversal of 199129 is 921991.

199129 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 921991 = 7 ⋅131713.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-199129 is a prime.

199129 is a lucky number.

It is a plaindrome in base 11.

It is a self number, because there is not a number n which added to its sum of digits gives 199129.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (199109) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14217 + ... + 14230.

It is an arithmetic number, because the mean of its divisors is an integer number (56896).

2¹⁹⁹¹²⁹ is an apocalyptic number.

It is an amenable number.

199129 is a deficient number, since it is larger than the sum of its proper divisors (28455).

199129 is an equidigital number, since it uses as much as digits as its factorization.

199129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28454.

The product of its digits is 1458, while the sum is 31.

The square root of 199129 is about 446.2387253478. The cubic root of 199129 is about 58.3953372458.

The spelling of 199129 in words is "one hundred ninety-nine thousand, one hundred twenty-nine".