13531186133 has 2 divisors, whose sum is σ = 13531186134. Its totient is φ = 13531186132.

The previous prime is 13531186127. The next prime is 13531186153. The reversal of 13531186133 is 33168113531.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12531235249 + 999950884 = 111943^2 + 31622^2 .

It is a cyclic number.

It is not a de Polignac number, because 13531186133 - 2²⁴ = 13514408917 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13531186093 and 13531186102.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13531186153) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6765593066 + 6765593067.

It is an arithmetic number, because the mean of its divisors is an integer number (6765593067).

Almost surely, 2^13531186133 is an apocalyptic number.

It is an amenable number.

13531186133 is a deficient number, since it is larger than the sum of its proper divisors (1).

13531186133 is an equidigital number, since it uses as much as digits as its factorization.

13531186133 is an evil number, because the sum of its binary digits is even.

The product of its digits is 19440, while the sum is 35.

Adding to 13531186133 its reverse (33168113531), we get a palindrome (46699299664).

The spelling of 13531186133 in words is "thirteen billion, five hundred thirty-one million, one hundred eighty-six thousand, one hundred thirty-three".