133509094973 has 2 divisors, whose sum is σ = 133509094974. Its totient is φ = 133509094972.

The previous prime is 133509094963. The next prime is 133509094997. The reversal of 133509094973 is 379490905331.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 133507659769 + 1435204 = 365387^2 + 1198^2 .

It is a cyclic number.

It is not a de Polignac number, because 133509094973 - 2¹⁸ = 133508832829 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (133509094933) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66754547486 + 66754547487.

It is an arithmetic number, because the mean of its divisors is an integer number (66754547487).

Almost surely, 2^133509094973 is an apocalyptic number.

It is an amenable number.

133509094973 is a deficient number, since it is larger than the sum of its proper divisors (1).

133509094973 is an equidigital number, since it uses as much as digits as its factorization.

133509094973 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2755620, while the sum is 53.

The spelling of 133509094973 in words is "one hundred thirty-three billion, five hundred nine million, ninety-four thousand, nine hundred seventy-three".