199012967 has 4 divisors (see below), whose sum is σ = 199210440. Its totient is φ = 198815496.

The previous prime is 199012949. The next prime is 199013027. The reversal of 199012967 is 769210991.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-199012967 is a prime.

It is a super-4 number, since 4×199012967⁴ (a number of 34 digits) contains 4444 as substring. Note that it is a super-d number also for d = 3, 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (199012907) 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, 97217 + ... + 99242.

It is an arithmetic number, because the mean of its divisors is an integer number (49802610).

Almost surely, 2^199012967 is an apocalyptic number.

199012967 is a deficient number, since it is larger than the sum of its proper divisors (197473).

199012967 is a wasteful number, since it uses less digits than its factorization.

199012967 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 197472.

The product of its (nonzero) digits is 61236, while the sum is 44.

The square root of 199012967 is about 14107.1955753084. The cubic root of 199012967 is about 583.8399266902.

The spelling of 199012967 in words is "one hundred ninety-nine million, twelve thousand, nine hundred sixty-seven".