15567241 has 2 divisors, whose sum is σ = 15567242. Its totient is φ = 15567240.

The previous prime is 15567217. The next prime is 15567259. The reversal of 15567241 is 14276551.

15567241 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., 11587216 + 3980025 = 3404^2 + 1995^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-15567241 is a prime.

It is a Chen prime.

It is equal to p_1004989 and since 15567241 and 1004989 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 (15567341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7783620 + 7783621.

It is an arithmetic number, because the mean of its divisors is an integer number (7783621).

Almost surely, 2^15567241 is an apocalyptic number.

It is an amenable number.

15567241 is a deficient number, since it is larger than the sum of its proper divisors (1).

15567241 is an equidigital number, since it uses as much as digits as its factorization.

15567241 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8400, while the sum is 31.

The square root of 15567241 is about 3945.5343110915. The cubic root of 15567241 is about 249.6915716443.

The spelling of 15567241 in words is "fifteen million, five hundred sixty-seven thousand, two hundred forty-one".