133295489 has 2 divisors, whose sum is σ = 133295490. Its totient is φ = 133295488.

The previous prime is 133295411. The next prime is 133295509. The reversal of 133295489 is 984592331.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 133287025 + 8464 = 11545^2 + 92^2 .

It is a cyclic number.

It is not a de Polignac number, because 133295489 - 2⁸ = 133295233 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (133291489) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66647744 + 66647745.

It is an arithmetic number, because the mean of its divisors is an integer number (66647745).

Almost surely, 2^133295489 is an apocalyptic number.

It is an amenable number.

133295489 is a deficient number, since it is larger than the sum of its proper divisors (1).

133295489 is an equidigital number, since it uses as much as digits as its factorization.

133295489 is an evil number, because the sum of its binary digits is even.

The product of its digits is 233280, while the sum is 44.

The square root of 133295489 is about 11545.3665597936. The cubic root of 133295489 is about 510.8246162394.

The spelling of 133295489 in words is "one hundred thirty-three million, two hundred ninety-five thousand, four hundred eighty-nine".