199964575 has 12 divisors (see below), whose sum is σ = 248287680. Its totient is φ = 159757760.

The previous prime is 199964573. The next prime is 199964587. The reversal of 199964575 is 575469991.

It is not a de Polignac number, because 199964575 - 2¹ = 199964573 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (199964573) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15282 + ... + 25168.

It is an arithmetic number, because the mean of its divisors is an integer number (20690640).

Almost surely, 2^199964575 is an apocalyptic number.

199964575 is a deficient number, since it is larger than the sum of its proper divisors (48323105).

199964575 is an equidigital number, since it uses as much as digits as its factorization.

199964575 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10706 (or 10701 counting only the distinct ones).

The product of its digits is 3061800, while the sum is 55.

The square root of 199964575 is about 14140.8831053792. The cubic root of 199964575 is about 584.7690178277.

The spelling of 199964575 in words is "one hundred ninety-nine million, nine hundred sixty-four thousand, five hundred seventy-five".