200199681 has 24 divisors (see below), whose sum is σ = 327154464. Its totient is φ = 121331520.

The previous prime is 200199677. The next prime is 200199683. The reversal of 200199681 is 186991002.

It is not a de Polignac number, because 200199681 - 2² = 200199677 is a prime.

It is a super-2 number, since 2×200199681² = 80159824545003522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (200199683) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 34776 + ... + 40121.

It is an arithmetic number, because the mean of its divisors is an integer number (13631436).

Almost surely, 2^200199681 is an apocalyptic number.

It is an amenable number.

200199681 is a deficient number, since it is larger than the sum of its proper divisors (126954783).

200199681 is an equidigital number, since it uses as much as digits as its factorization.

200199681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74923 (or 74911 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 36.

The square root of 200199681 is about 14149.1936519365. The cubic root of 200199681 is about 584.9981065027.

The spelling of 200199681 in words is "two hundred million, one hundred ninety-nine thousand, six hundred eighty-one".