200134121 has 12 divisors (see below), whose sum is σ = 221606196. Its totient is φ = 180597120.

The previous prime is 200134091. The next prime is 200134139. The reversal of 200134121 is 121431002.

It can be written as a sum of positive squares in 2 ways, for example, as 47265625 + 152868496 = 6875^2 + 12364^2 .

It is not a de Polignac number, because 200134121 - 2¹⁴ = 200117737 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 200134096 and 200134105.

It is not an unprimeable number, because it can be changed into a prime (200131121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10541 + ... + 22613.

It is an arithmetic number, because the mean of its divisors is an integer number (18467183).

Almost surely, 2^200134121 is an apocalyptic number.

It is an amenable number.

200134121 is a deficient number, since it is larger than the sum of its proper divisors (21472075).

200134121 is a wasteful number, since it uses less digits than its factorization.

200134121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12232 (or 12221 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 200134121 is about 14146.8767224430. The cubic root of 200134121 is about 584.9342424931.

Adding to 200134121 its reverse (121431002), we get a palindrome (321565123).

The spelling of 200134121 in words is "two hundred million, one hundred thirty-four thousand, one hundred twenty-one".