15205241 has 2 divisors, whose sum is σ = 15205242. Its totient is φ = 15205240.

The previous prime is 15205237. The next prime is 15205271. The reversal of 15205241 is 14250251.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11363641 + 3841600 = 3371^2 + 1960^2 .

It is a cyclic number.

It is not a de Polignac number, because 15205241 - 2² = 15205237 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (15205271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7602620 + 7602621.

It is an arithmetic number, because the mean of its divisors is an integer number (7602621).

Almost surely, 2^15205241 is an apocalyptic number.

It is an amenable number.

15205241 is a deficient number, since it is larger than the sum of its proper divisors (1).

15205241 is an equidigital number, since it uses as much as digits as its factorization.

15205241 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 400, while the sum is 20.

The square root of 15205241 is about 3899.3898240622. The cubic root of 15205241 is about 247.7409332911.

Adding to 15205241 its reverse (14250251), we get a palindrome (29455492).

The spelling of 15205241 in words is "fifteen million, two hundred five thousand, two hundred forty-one".