201242507 has 2 divisors, whose sum is σ = 201242508. Its totient is φ = 201242506.

The previous prime is 201242441. The next prime is 201242521. The reversal of 201242507 is 705242102.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 201242507 - 2²⁴ = 184465291 is a prime.

It is not a weakly prime, because it can be changed into another prime (201242527) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100621253 + 100621254.

It is an arithmetic number, because the mean of its divisors is an integer number (100621254).

Almost surely, 2^201242507 is an apocalyptic number.

201242507 is a deficient number, since it is larger than the sum of its proper divisors (1).

201242507 is an equidigital number, since it uses as much as digits as its factorization.

201242507 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1120, while the sum is 23.

The square root of 201242507 is about 14185.9968631041. The cubic root of 201242507 is about 586.0120858942.

Adding to 201242507 its reverse (705242102), we get a palindrome (906484609).

The spelling of 201242507 in words is "two hundred one million, two hundred forty-two thousand, five hundred seven".