13531272413 has 2 divisors, whose sum is σ = 13531272414. Its totient is φ = 13531272412.

The previous prime is 13531272409. The next prime is 13531272463. The reversal of 13531272413 is 31427213531.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9169594564 + 4361677849 = 95758^2 + 66043^2 .

It is a cyclic number.

It is not a de Polignac number, because 13531272413 - 2² = 13531272409 is a prime.

It is a super-2 number, since 2×13531272413² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 13531272413.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13531272463) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6765636206 + 6765636207.

It is an arithmetic number, because the mean of its divisors is an integer number (6765636207).

Almost surely, 2^13531272413 is an apocalyptic number.

It is an amenable number.

13531272413 is a deficient number, since it is larger than the sum of its proper divisors (1).

13531272413 is an equidigital number, since it uses as much as digits as its factorization.

13531272413 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15120, while the sum is 32.

Adding to 13531272413 its reverse (31427213531), we get a palindrome (44958485944).

The spelling of 13531272413 in words is "thirteen billion, five hundred thirty-one million, two hundred seventy-two thousand, four hundred thirteen".