201110257 has 2 divisors, whose sum is σ = 201110258. Its totient is φ = 201110256.

The previous prime is 201110213. The next prime is 201110263. The reversal of 201110257 is 752011102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 198922816 + 2187441 = 14104^2 + 1479^2 .

It is a cyclic number.

It is not a de Polignac number, because 201110257 - 2²³ = 192721649 is a prime.

It is not a weakly prime, because it can be changed into another prime (201110267) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100555128 + 100555129.

It is an arithmetic number, because the mean of its divisors is an integer number (100555129).

Almost surely, 2^201110257 is an apocalyptic number.

It is an amenable number.

201110257 is a deficient number, since it is larger than the sum of its proper divisors (1).

201110257 is an equidigital number, since it uses as much as digits as its factorization.

201110257 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 140, while the sum is 19.

The square root of 201110257 is about 14181.3348102356. The cubic root of 201110257 is about 585.8836884323.

Adding to 201110257 its reverse (752011102), we get a palindrome (953121359).

The spelling of 201110257 in words is "two hundred one million, one hundred ten thousand, two hundred fifty-seven".