133265773 has 2 divisors, whose sum is σ = 133265774. Its totient is φ = 133265772.

The previous prime is 133265711. The next prime is 133265779. The reversal of 133265773 is 377562331.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 67947049 + 65318724 = 8243^2 + 8082^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-133265773 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (133265779) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66632886 + 66632887.

It is an arithmetic number, because the mean of its divisors is an integer number (66632887).

Almost surely, 2^133265773 is an apocalyptic number.

It is an amenable number.

133265773 is a deficient number, since it is larger than the sum of its proper divisors (1).

133265773 is an equidigital number, since it uses as much as digits as its factorization.

133265773 is an evil number, because the sum of its binary digits is even.

The product of its digits is 79380, while the sum is 37.

The square root of 133265773 is about 11544.0795648679. The cubic root of 133265773 is about 510.7866534832.

The spelling of 133265773 in words is "one hundred thirty-three million, two hundred sixty-five thousand, seven hundred seventy-three".