207121241 has 2 divisors, whose sum is σ = 207121242. Its totient is φ = 207121240.

The previous prime is 207121207. The next prime is 207121253. The reversal of 207121241 is 142121702.

207121241 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 174345616 + 32775625 = 13204^2 + 5725^2 .

It is a cyclic number.

It is not a de Polignac number, because 207121241 - 2¹⁰ = 207120217 is a prime.

It is a Chen prime.

It is equal to p_11451242 and since 207121241 and 11451242 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (207121441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 103560620 + 103560621.

It is an arithmetic number, because the mean of its divisors is an integer number (103560621).

Almost surely, 2^207121241 is an apocalyptic number.

It is an amenable number.

207121241 is a deficient number, since it is larger than the sum of its proper divisors (1).

207121241 is an equidigital number, since it uses as much as digits as its factorization.

207121241 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 224, while the sum is 20.

The square root of 207121241 is about 14391.7073691762. The cubic root of 207121241 is about 591.6636383984.

Adding to 207121241 its reverse (142121702), we get a palindrome (349242943).

The spelling of 207121241 in words is "two hundred seven million, one hundred twenty-one thousand, two hundred forty-one".