201135257 has 2 divisors, whose sum is σ = 201135258. Its totient is φ = 201135256.

The previous prime is 201135229. The next prime is 201135269. The reversal of 201135257 is 752531102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 149352841 + 51782416 = 12221^2 + 7196^2 .

It is a cyclic number.

It is not a de Polignac number, because 201135257 - 2¹⁴ = 201118873 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (201135287) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100567628 + 100567629.

It is an arithmetic number, because the mean of its divisors is an integer number (100567629).

Almost surely, 2^201135257 is an apocalyptic number.

It is an amenable number.

201135257 is a deficient number, since it is larger than the sum of its proper divisors (1).

201135257 is an equidigital number, since it uses as much as digits as its factorization.

201135257 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2100, while the sum is 26.

The square root of 201135257 is about 14182.2162231437. The cubic root of 201135257 is about 585.9079644779.

Adding to 201135257 its reverse (752531102), we get a palindrome (953666359).

The spelling of 201135257 in words is "two hundred one million, one hundred thirty-five thousand, two hundred fifty-seven".