133674320653 has 2 divisors, whose sum is σ = 133674320654. Its totient is φ = 133674320652.

The previous prime is 133674320639. The next prime is 133674320683. The reversal of 133674320653 is 356023476331.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 128001519529 + 5672801124 = 357773^2 + 75318^2 .

It is a cyclic number.

It is not a de Polignac number, because 133674320653 - 2⁹ = 133674320141 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (133674320683) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66837160326 + 66837160327.

It is an arithmetic number, because the mean of its divisors is an integer number (66837160327).

Almost surely, 2^133674320653 is an apocalyptic number.

It is an amenable number.

133674320653 is a deficient number, since it is larger than the sum of its proper divisors (1).

133674320653 is an equidigital number, since it uses as much as digits as its factorization.

133674320653 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 816480, while the sum is 43.

Adding to 133674320653 its reverse (356023476331), we get a palindrome (489697796984).

The spelling of 133674320653 in words is "one hundred thirty-three billion, six hundred seventy-four million, three hundred twenty thousand, six hundred fifty-three".