12637132133 has 4 divisors (see below), whose sum is σ = 13072895340. Its totient is φ = 12201368928.

The previous prime is 12637132129. The next prime is 12637132139. The reversal of 12637132133 is 33123173621.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3673208449 + 8963923684 = 60607^2 + 94678^2 .

It is a cyclic number.

It is not a de Polignac number, because 12637132133 - 2² = 12637132129 is a prime.

It is a super-2 number, since 2×12637132133² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12637132133.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12637132139) 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 in 3 ways as a sum of consecutive naturals, for example, 217881560 + ... + 217881617.

It is an arithmetic number, because the mean of its divisors is an integer number (3268223835).

Almost surely, 2^12637132133 is an apocalyptic number.

It is an amenable number.

12637132133 is a deficient number, since it is larger than the sum of its proper divisors (435763207).

12637132133 is an equidigital number, since it uses as much as digits as its factorization.

12637132133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 435763206.

The product of its digits is 13608, while the sum is 32.

The spelling of 12637132133 in words is "twelve billion, six hundred thirty-seven million, one hundred thirty-two thousand, one hundred thirty-three".