133533390373 has 2 divisors, whose sum is σ = 133533390374. Its totient is φ = 133533390372.

The previous prime is 133533390301. The next prime is 133533390391. The reversal of 133533390373 is 373093335331.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 66821216004 + 66712174369 = 258498^2 + 258287^2 .

It is a cyclic number.

It is not a de Polignac number, because 133533390373 - 2²¹ = 133531293221 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (133533390973) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66766695186 + 66766695187.

It is an arithmetic number, because the mean of its divisors is an integer number (66766695187).

Almost surely, 2^133533390373 is an apocalyptic number.

It is an amenable number.

133533390373 is a deficient number, since it is larger than the sum of its proper divisors (1).

133533390373 is an equidigital number, since it uses as much as digits as its factorization.

133533390373 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 688905, while the sum is 43.

The spelling of 133533390373 in words is "one hundred thirty-three billion, five hundred thirty-three million, three hundred ninety thousand, three hundred seventy-three".