133027409 has 2 divisors, whose sum is σ = 133027410. Its totient is φ = 133027408.

The previous prime is 133027381. The next prime is 133027439. The reversal of 133027409 is 904720331.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 132181009 + 846400 = 11497^2 + 920^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-133027409 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (133027439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66513704 + 66513705.

It is an arithmetic number, because the mean of its divisors is an integer number (66513705).

Almost surely, 2^133027409 is an apocalyptic number.

It is an amenable number.

133027409 is a deficient number, since it is larger than the sum of its proper divisors (1).

133027409 is an equidigital number, since it uses as much as digits as its factorization.

133027409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4536, while the sum is 29.

The square root of 133027409 is about 11533.7508643112. The cubic root of 133027409 is about 510.4819345494.

The spelling of 133027409 in words is "one hundred thirty-three million, twenty-seven thousand, four hundred nine".