196999601 has 4 divisors (see below), whose sum is σ = 197125632. Its totient is φ = 196873572.

The previous prime is 196999589. The next prime is 196999613. The reversal of 196999601 is 106999691.

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 an interprime number because it is at equal distance from previous prime (196999589) and next prime (196999613).

It is a cyclic number.

It is not a de Polignac number, because 196999601 - 2¹⁰ = 196998577 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 196999601.

It is not an unprimeable number, because it can be changed into a prime (196999651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 60641 + ... + 63806.

It is an arithmetic number, because the mean of its divisors is an integer number (49281408).

Almost surely, 2^196999601 is an apocalyptic number.

It is an amenable number.

196999601 is a deficient number, since it is larger than the sum of its proper divisors (126031).

196999601 is a wasteful number, since it uses less digits than its factorization.

196999601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126030.

The product of its (nonzero) digits is 236196, while the sum is 50.

The square root of 196999601 is about 14035.6546338245. The cubic root of 196999601 is about 581.8643939169.

The spelling of 196999601 in words is "one hundred ninety-six million, nine hundred ninety-nine thousand, six hundred one".