201225097 has 2 divisors, whose sum is σ = 201225098. Its totient is φ = 201225096.

The previous prime is 201225083. The next prime is 201225133. The reversal of 201225097 is 790522102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 193182201 + 8042896 = 13899^2 + 2836^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-201225097 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (201225077) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100612548 + 100612549.

It is an arithmetic number, because the mean of its divisors is an integer number (100612549).

Almost surely, 2^201225097 is an apocalyptic number.

It is an amenable number.

201225097 is a deficient number, since it is larger than the sum of its proper divisors (1).

201225097 is an equidigital number, since it uses as much as digits as its factorization.

201225097 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2520, while the sum is 28.

The square root of 201225097 is about 14185.3832165367. The cubic root of 201225097 is about 585.9951862760.

Adding to 201225097 its reverse (790522102), we get a palindrome (991747199).

The spelling of 201225097 in words is "two hundred one million, two hundred twenty-five thousand, ninety-seven".