201125189 has 2 divisors, whose sum is σ = 201125190. Its totient is φ = 201125188.

The previous prime is 201125161. The next prime is 201125207. The reversal of 201125189 is 981521102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 107848225 + 93276964 = 10385^2 + 9658^2 .

It is a cyclic number.

It is not a de Polignac number, because 201125189 - 2¹² = 201121093 is a prime.

It is a Chen prime.

It is equal to p_11137880 and since 201125189 and 11137880 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (201125149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100562594 + 100562595.

It is an arithmetic number, because the mean of its divisors is an integer number (100562595).

Almost surely, 2^201125189 is an apocalyptic number.

It is an amenable number.

201125189 is a deficient number, since it is larger than the sum of its proper divisors (1).

201125189 is an equidigital number, since it uses as much as digits as its factorization.

201125189 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1440, while the sum is 29.

The square root of 201125189 is about 14181.8612671257. The cubic root of 201125189 is about 585.8981882708.

The spelling of 201125189 in words is "two hundred one million, one hundred twenty-five thousand, one hundred eighty-nine".