133216254653 has 4 divisors (see below), whose sum is σ = 133217808348. Its totient is φ = 133214700960.

The previous prime is 133216254631. The next prime is 133216254749. The reversal of 133216254653 is 356452612331.

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 102570951289 + 30645303364 = 320267^2 + 175058^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-133216254653 is a prime.

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 133216254653.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133216284653) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 640226 + ... + 822387.

It is an arithmetic number, because the mean of its divisors is an integer number (33304452087).

Almost surely, 2^133216254653 is an apocalyptic number.

It is an amenable number.

133216254653 is a deficient number, since it is larger than the sum of its proper divisors (1553695).

133216254653 is an equidigital number, since it uses as much as digits as its factorization.

133216254653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1553694.

The product of its digits is 388800, while the sum is 41.

Adding to 133216254653 its reverse (356452612331), we get a palindrome (489668866984).

The spelling of 133216254653 in words is "one hundred thirty-three billion, two hundred sixteen million, two hundred fifty-four thousand, six hundred fifty-three".