133312297 has 2 divisors, whose sum is σ = 133312298. Its totient is φ = 133312296.

The previous prime is 133312271. The next prime is 133312337. The reversal of 133312297 is 792213331.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 114511401 + 18800896 = 10701^2 + 4336^2 .

It is a cyclic number.

It is not a de Polignac number, because 133312297 - 2¹⁹ = 132788009 is a prime.

It is not a weakly prime, because it can be changed into another prime (133319297) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66656148 + 66656149.

It is an arithmetic number, because the mean of its divisors is an integer number (66656149).

Almost surely, 2^133312297 is an apocalyptic number.

It is an amenable number.

133312297 is a deficient number, since it is larger than the sum of its proper divisors (1).

133312297 is an equidigital number, since it uses as much as digits as its factorization.

133312297 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6804, while the sum is 31.

The square root of 133312297 is about 11546.0944479075. The cubic root of 133312297 is about 510.8460862815.

The spelling of 133312297 in words is "one hundred thirty-three million, three hundred twelve thousand, two hundred ninety-seven".