15985241 has 2 divisors, whose sum is σ = 15985242. Its totient is φ = 15985240.

The previous prime is 15985231. The next prime is 15985261. The reversal of 15985241 is 14258951.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14784025 + 1201216 = 3845^2 + 1096^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-15985241 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (15985231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7992620 + 7992621.

It is an arithmetic number, because the mean of its divisors is an integer number (7992621).

Almost surely, 2^15985241 is an apocalyptic number.

It is an amenable number.

15985241 is a deficient number, since it is larger than the sum of its proper divisors (1).

15985241 is an equidigital number, since it uses as much as digits as its factorization.

15985241 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 14400, while the sum is 35.

The square root of 15985241 is about 3998.1546993582. The cubic root of 15985241 is about 251.9067062484.

The spelling of 15985241 in words is "fifteen million, nine hundred eighty-five thousand, two hundred forty-one".