15393241 has 2 divisors, whose sum is σ = 15393242. Its totient is φ = 15393240.

The previous prime is 15393239. The next prime is 15393253. The reversal of 15393241 is 14239351.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12278016 + 3115225 = 3504^2 + 1765^2 .

It is a cyclic number.

It is not a de Polignac number, because 15393241 - 2¹ = 15393239 is a prime.

Together with 15393239, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (15393541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7696620 + 7696621.

It is an arithmetic number, because the mean of its divisors is an integer number (7696621).

Almost surely, 2^15393241 is an apocalyptic number.

It is an amenable number.

15393241 is a deficient number, since it is larger than the sum of its proper divisors (1).

15393241 is an equidigital number, since it uses as much as digits as its factorization.

15393241 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3240, while the sum is 28.

The square root of 15393241 is about 3923.4221032155. The cubic root of 15393241 is about 248.7577898792.

The spelling of 15393241 in words is "fifteen million, three hundred ninety-three thousand, two hundred forty-one".