13390241 has 2 divisors, whose sum is σ = 13390242. Its totient is φ = 13390240.

The previous prime is 13390219. The next prime is 13390249. The reversal of 13390241 is 14209331.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9859600 + 3530641 = 3140^2 + 1879^2 .

It is a cyclic number.

It is not a de Polignac number, because 13390241 - 2⁶ = 13390177 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (13390249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6695120 + 6695121.

It is an arithmetic number, because the mean of its divisors is an integer number (6695121).

Almost surely, 2^13390241 is an apocalyptic number.

It is an amenable number.

13390241 is a deficient number, since it is larger than the sum of its proper divisors (1).

13390241 is an equidigital number, since it uses as much as digits as its factorization.

13390241 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648, while the sum is 23.

The square root of 13390241 is about 3659.2678229394. The cubic root of 13390241 is about 237.4630989760.

Adding to 13390241 its reverse (14209331), we get a palindrome (27599572).

It can be divided in two parts, 13390 and 241, that added together give a palindrome (13631).

The spelling of 13390241 in words is "thirteen million, three hundred ninety thousand, two hundred forty-one".