133320293 has 2 divisors, whose sum is σ = 133320294. Its totient is φ = 133320292.

The previous prime is 133320269. The next prime is 133320301. The reversal of 133320293 is 392023331.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 112508449 + 20811844 = 10607^2 + 4562^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-133320293 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (133320793) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66660146 + 66660147.

It is an arithmetic number, because the mean of its divisors is an integer number (66660147).

Almost surely, 2^133320293 is an apocalyptic number.

It is an amenable number.

133320293 is a deficient number, since it is larger than the sum of its proper divisors (1).

133320293 is an equidigital number, since it uses as much as digits as its factorization.

133320293 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2916, while the sum is 26.

The square root of 133320293 is about 11546.4407069885. The cubic root of 133320293 is about 510.8562995020.

The spelling of 133320293 in words is "one hundred thirty-three million, three hundred twenty thousand, two hundred ninety-three".