199000641 has 32 divisors (see below), whose sum is σ = 308482048. Its totient is φ = 111767040.

The previous prime is 199000609. The next prime is 199000643. The reversal of 199000641 is 146000991.

It is not a de Polignac number, because 199000641 - 2⁵ = 199000609 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 199000599 and 199000608.

It is not an unprimeable number, because it can be changed into a prime (199000643) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 429576 + ... + 430038.

It is an arithmetic number, because the mean of its divisors is an integer number (9640064).

Almost surely, 2^199000641 is an apocalyptic number.

It is an amenable number.

199000641 is a deficient number, since it is larger than the sum of its proper divisors (109481407).

199000641 is a wasteful number, since it uses less digits than its factorization.

199000641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 781.

The product of its (nonzero) digits is 1944, while the sum is 30.

The square root of 199000641 is about 14106.7586992902. The cubic root of 199000641 is about 583.8278729371.

The spelling of 199000641 in words is "one hundred ninety-nine million, six hundred forty-one", and thus it is an aban number.