200561361 has 128 divisors (see below), whose sum is σ = 387072000. Its totient is φ = 90881280.

The previous prime is 200561341. The next prime is 200561363. The reversal of 200561361 is 163165002.

It is not a de Polignac number, because 200561361 - 2²² = 196367057 is a prime.

It is not an unprimeable number, because it can be changed into a prime (200561363) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 4267240 + ... + 4267286.

It is an arithmetic number, because the mean of its divisors is an integer number (3024000).

Almost surely, 2^200561361 is an apocalyptic number.

200561361 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

200561361 is a deficient number, since it is larger than the sum of its proper divisors (186510639).

200561361 is a wasteful number, since it uses less digits than its factorization.

200561361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124 (or 110 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 200561361 is about 14161.9688249904. The cubic root of 200561361 is about 585.3501797051.

The spelling of 200561361 in words is "two hundred million, five hundred sixty-one thousand, three hundred sixty-one".