200081536 has 16 divisors (see below), whose sum is σ = 398600190. Its totient is φ = 100040704.

The previous prime is 200081509. The next prime is 200081549. The reversal of 200081536 is 635180002.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 108993600 + 91087936 = 10440^2 + 9544^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is a self number, because there is not a number n which added to its sum of digits gives 200081536.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 781441 + ... + 781696.

Almost surely, 2^200081536 is an apocalyptic number.

It is an amenable number.

200081536 is a deficient number, since it is larger than the sum of its proper divisors (198518654).

200081536 is an equidigital number, since it uses as much as digits as its factorization.

200081536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1563151 (or 1563139 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 200081536 is about 14145.0180629082. The cubic root of 200081536 is about 584.8830077489.

The spelling of 200081536 in words is "two hundred million, eighty-one thousand, five hundred thirty-six".