13131241 has 2 divisors, whose sum is σ = 13131242. Its totient is φ = 13131240.

The previous prime is 13131233. The next prime is 13131257. The reversal of 13131241 is 14213131.

It is an a-pointer prime, because the next prime (13131257) can be obtained adding 13131241 to its sum of digits (16).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13111641 + 19600 = 3621^2 + 140^2 .

It is a cyclic number.

It is not a de Polignac number, because 13131241 - 2³ = 13131233 is a prime.

It is not a weakly prime, because it can be changed into another prime (13131271) 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, 6565620 + 6565621.

It is an arithmetic number, because the mean of its divisors is an integer number (6565621).

Almost surely, 2^13131241 is an apocalyptic number.

It is an amenable number.

13131241 is a deficient number, since it is larger than the sum of its proper divisors (1).

13131241 is an equidigital number, since it uses as much as digits as its factorization.

13131241 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 72, while the sum is 16.

The square root of 13131241 is about 3623.7054240101. The cubic root of 13131241 is about 235.9220811905.

Adding to 13131241 its reverse (14213131), we get a palindrome (27344372).

The spelling of 13131241 in words is "thirteen million, one hundred thirty-one thousand, two hundred forty-one".