133605077 has 2 divisors, whose sum is σ = 133605078. Its totient is φ = 133605076.

The previous prime is 133605061. The next prime is 133605079. The reversal of 133605077 is 770506331.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 129640996 + 3964081 = 11386^2 + 1991^2 .

It is a cyclic number.

It is not a de Polignac number, because 133605077 - 2⁴ = 133605061 is a prime.

Together with 133605079, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (133605079) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66802538 + 66802539.

It is an arithmetic number, because the mean of its divisors is an integer number (66802539).

Almost surely, 2^133605077 is an apocalyptic number.

It is an amenable number.

133605077 is a deficient number, since it is larger than the sum of its proper divisors (1).

133605077 is an equidigital number, since it uses as much as digits as its factorization.

133605077 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13230, while the sum is 32.

The square root of 133605077 is about 11558.7662403909. The cubic root of 133605077 is about 511.2197856380.

The spelling of 133605077 in words is "one hundred thirty-three million, six hundred five thousand, seventy-seven".