199129141 has 4 divisors (see below), whose sum is σ = 200229484. Its totient is φ = 198028800.

The previous prime is 199129127. The next prime is 199129187. The reversal of 199129141 is 141921991.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 141921991 = 2237 ⋅63443.

It can be written as a sum of positive squares in 2 ways, for example, as 6502500 + 192626641 = 2550^2 + 13879^2 .

It is a cyclic number.

It is not a de Polignac number, because 199129141 - 2⁷ = 199129013 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 199129141.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (199129111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 549900 + ... + 550261.

It is an arithmetic number, because the mean of its divisors is an integer number (50057371).

Almost surely, 2^199129141 is an apocalyptic number.

It is an amenable number.

199129141 is a deficient number, since it is larger than the sum of its proper divisors (1100343).

199129141 is a wasteful number, since it uses less digits than its factorization.

199129141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1100342.

The product of its digits is 5832, while the sum is 37.

The square root of 199129141 is about 14111.3125186851. The cubic root of 199129141 is about 583.9535102872.

The spelling of 199129141 in words is "one hundred ninety-nine million, one hundred twenty-nine thousand, one hundred forty-one".