13531200497 has 2 divisors, whose sum is σ = 13531200498. Its totient is φ = 13531200496.

The previous prime is 13531200491. The next prime is 13531200511. The reversal of 13531200497 is 79400213531.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13252844641 + 278355856 = 115121^2 + 16684^2 .

It is a cyclic number.

It is not a de Polignac number, because 13531200497 - 2²⁸ = 13262765041 is a prime.

It is not a weakly prime, because it can be changed into another prime (13531200491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6765600248 + 6765600249.

It is an arithmetic number, because the mean of its divisors is an integer number (6765600249).

Almost surely, 2^13531200497 is an apocalyptic number.

It is an amenable number.

13531200497 is a deficient number, since it is larger than the sum of its proper divisors (1).

13531200497 is an equidigital number, since it uses as much as digits as its factorization.

13531200497 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 22680, while the sum is 35.

The spelling of 13531200497 in words is "thirteen billion, five hundred thirty-one million, two hundred thousand, four hundred ninety-seven".