199075969 has 4 divisors (see below), whose sum is σ = 199404544. Its totient is φ = 198747396.

The previous prime is 199075937. The next prime is 199075979. The reversal of 199075969 is 969570991.

199075969 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.

It is a cyclic number.

It is not a de Polignac number, because 199075969 - 2⁵ = 199075937 is a prime.

It is a super-2 number, since 2×199075969² = 79262482866577922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (199075909) 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, 163377 + ... + 164590.

It is an arithmetic number, because the mean of its divisors is an integer number (49851136).

Almost surely, 2^199075969 is an apocalyptic number.

It is an amenable number.

199075969 is a deficient number, since it is larger than the sum of its proper divisors (328575).

199075969 is an equidigital number, since it uses as much as digits as its factorization.

199075969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 328574.

The product of its (nonzero) digits is 1377810, while the sum is 55.

The square root of 199075969 is about 14109.4283725458. The cubic root of 199075969 is about 583.9015293801.

The spelling of 199075969 in words is "one hundred ninety-nine million, seventy-five thousand, nine hundred sixty-nine".