133681600373 has 2 divisors, whose sum is σ = 133681600374. Its totient is φ = 133681600372.

The previous prime is 133681600331. The next prime is 133681600387. The reversal of 133681600373 is 373006186331.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 84400708324 + 49280892049 = 290518^2 + 221993^2 .

It is a cyclic number.

It is not a de Polignac number, because 133681600373 - 2⁶ = 133681600309 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 133681600373.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (133681600303) 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 as a sum of consecutive naturals, namely, 66840800186 + 66840800187.

It is an arithmetic number, because the mean of its divisors is an integer number (66840800187).

Almost surely, 2^133681600373 is an apocalyptic number.

It is an amenable number.

133681600373 is a deficient number, since it is larger than the sum of its proper divisors (1).

133681600373 is an equidigital number, since it uses as much as digits as its factorization.

133681600373 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 163296, while the sum is 41.

The spelling of 133681600373 in words is "one hundred thirty-three billion, six hundred eighty-one million, six hundred thousand, three hundred seventy-three".