200545121 has 16 divisors (see below), whose sum is σ = 238861440. Its totient is φ = 164734080.

The previous prime is 200545117. The next prime is 200545129. The reversal of 200545121 is 121545002.

200545121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 200545121 - 2² = 200545117 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 200545093 and 200545102.

It is not an unprimeable number, because it can be changed into a prime (200545129) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24206 + ... + 31416.

It is an arithmetic number, because the mean of its divisors is an integer number (14928840).

Almost surely, 2^200545121 is an apocalyptic number.

It is an amenable number.

200545121 is a deficient number, since it is larger than the sum of its proper divisors (38316319).

200545121 is a wasteful number, since it uses less digits than its factorization.

200545121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7384.

The product of its (nonzero) digits is 400, while the sum is 20.

The square root of 200545121 is about 14161.3954467771. The cubic root of 200545121 is about 585.3343801455.

The spelling of 200545121 in words is "two hundred million, five hundred forty-five thousand, one hundred twenty-one".