13531225441 has 2 divisors, whose sum is σ = 13531225442. Its totient is φ = 13531225440.

The previous prime is 13531225363. The next prime is 13531225451. The reversal of 13531225441 is 14452213531.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12660975441 + 870250000 = 112521^2 + 29500^2 .

It is a cyclic number.

It is not a de Polignac number, because 13531225441 - 2¹¹ = 13531223393 is a prime.

It is not a weakly prime, because it can be changed into another prime (13531225451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6765612720 + 6765612721.

It is an arithmetic number, because the mean of its divisors is an integer number (6765612721).

Almost surely, 2^13531225441 is an apocalyptic number.

It is an amenable number.

13531225441 is a deficient number, since it is larger than the sum of its proper divisors (1).

13531225441 is an equidigital number, since it uses as much as digits as its factorization.

13531225441 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 14400, while the sum is 31.

Adding to 13531225441 its reverse (14452213531), we get a palindrome (27983438972).

The spelling of 13531225441 in words is "thirteen billion, five hundred thirty-one million, two hundred twenty-five thousand, four hundred forty-one".