200309081 has 8 divisors (see below), whose sum is σ = 229953024. Its totient is φ = 170922240.

The previous prime is 200309069. The next prime is 200309107. The reversal of 200309081 is 180903002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 200309081 - 2⁶ = 200309017 is a prime.

It is a super-2 number, since 2×200309081² = 80247455862129122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (200309051) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 62600 + ... + 65721.

It is an arithmetic number, because the mean of its divisors is an integer number (28744128).

Almost surely, 2^200309081 is an apocalyptic number.

It is an amenable number.

200309081 is a deficient number, since it is larger than the sum of its proper divisors (29643943).

200309081 is a wasteful number, since it uses less digits than its factorization.

200309081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128551.

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 200309081 is about 14153.0590686254. The cubic root of 200309081 is about 585.1046453653.

The spelling of 200309081 in words is "two hundred million, three hundred nine thousand, eighty-one".