133694233 has 2 divisors, whose sum is σ = 133694234. Its totient is φ = 133694232.

The previous prime is 133694221. The next prime is 133694251. The reversal of 133694233 is 332496331.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 70761744 + 62932489 = 8412^2 + 7933^2 .

It is a cyclic number.

It is not a de Polignac number, because 133694233 - 2⁵ = 133694201 is a prime.

It is not a weakly prime, because it can be changed into another prime (133694213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66847116 + 66847117.

It is an arithmetic number, because the mean of its divisors is an integer number (66847117).

Almost surely, 2^133694233 is an apocalyptic number.

It is an amenable number.

133694233 is a deficient number, since it is larger than the sum of its proper divisors (1).

133694233 is an equidigital number, since it uses as much as digits as its factorization.

133694233 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 34992, while the sum is 34.

The square root of 133694233 is about 11562.6222371917. The cubic root of 133694233 is about 511.3334743732. Note that the first 3 decimals are identical.

The spelling of 133694233 in words is "one hundred thirty-three million, six hundred ninety-four thousand, two hundred thirty-three".