133115293 has 2 divisors, whose sum is σ = 133115294. Its totient is φ = 133115292.

The previous prime is 133115261. The next prime is 133115299. The reversal of 133115293 is 392511331.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 118962649 + 14152644 = 10907^2 + 3762^2 .

It is a cyclic number.

It is not a de Polignac number, because 133115293 - 2⁵ = 133115261 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (133115299) 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, 66557646 + 66557647.

It is an arithmetic number, because the mean of its divisors is an integer number (66557647).

Almost surely, 2^133115293 is an apocalyptic number.

It is an amenable number.

133115293 is a deficient number, since it is larger than the sum of its proper divisors (1).

133115293 is an equidigital number, since it uses as much as digits as its factorization.

133115293 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2430, while the sum is 28.

The square root of 133115293 is about 11537.5600973516. The cubic root of 133115293 is about 510.5943257193.

The spelling of 133115293 in words is "one hundred thirty-three million, one hundred fifteen thousand, two hundred ninety-three".