201245251 has 2 divisors, whose sum is σ = 201245252. Its totient is φ = 201245250.

The previous prime is 201245243. The next prime is 201245263. The reversal of 201245251 is 152542102.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 201245251 - 2³ = 201245243 is a prime.

It is not a weakly prime, because it can be changed into another prime (201245651) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100622625 + 100622626.

It is an arithmetic number, because the mean of its divisors is an integer number (100622626).

Almost surely, 2^201245251 is an apocalyptic number.

201245251 is a deficient number, since it is larger than the sum of its proper divisors (1).

201245251 is an equidigital number, since it uses as much as digits as its factorization.

201245251 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 800, while the sum is 22.

The square root of 201245251 is about 14186.0935778670. The cubic root of 201245251 is about 586.0147493638.

Adding to 201245251 its reverse (152542102), we get a palindrome (353787353).

The spelling of 201245251 in words is "two hundred one million, two hundred forty-five thousand, two hundred fifty-one".