15744241 has 2 divisors, whose sum is σ = 15744242. Its totient is φ = 15744240.

The previous prime is 15744199. The next prime is 15744247. The reversal of 15744241 is 14244751.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9790641 + 5953600 = 3129^2 + 2440^2 .

It is a cyclic number.

It is not a de Polignac number, because 15744241 - 2⁹ = 15743729 is a prime.

It is a super-2 number, since 2×15744241² = 495762249332162, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (15744247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7872120 + 7872121.

It is an arithmetic number, because the mean of its divisors is an integer number (7872121).

Almost surely, 2^15744241 is an apocalyptic number.

It is an amenable number.

15744241 is a deficient number, since it is larger than the sum of its proper divisors (1).

15744241 is an equidigital number, since it uses as much as digits as its factorization.

15744241 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4480, while the sum is 28.

The square root of 15744241 is about 3967.9013344588. The cubic root of 15744241 is about 250.6343410842.

Adding to 15744241 its reverse (14244751), we get a palindrome (29988992).

It can be divided in two parts, 1574424 and 1, that added together give a triangular number (1574425 = T₁₇₇₄).

The spelling of 15744241 in words is "fifteen million, seven hundred forty-four thousand, two hundred forty-one".