133356709 has 2 divisors, whose sum is σ = 133356710. Its totient is φ = 133356708.

The previous prime is 133356701. The next prime is 133356749. The reversal of 133356709 is 907653331.

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., 86434209 + 46922500 = 9297^2 + 6850^2 .

It is a cyclic number.

It is not a de Polignac number, because 133356709 - 2³ = 133356701 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (133356701) 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, 66678354 + 66678355.

It is an arithmetic number, because the mean of its divisors is an integer number (66678355).

Almost surely, 2^133356709 is an apocalyptic number.

It is an amenable number.

133356709 is a deficient number, since it is larger than the sum of its proper divisors (1).

133356709 is an equidigital number, since it uses as much as digits as its factorization.

133356709 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 51030, while the sum is 37.

The square root of 133356709 is about 11548.0175354907. The cubic root of 133356709 is about 510.9028081743.

The spelling of 133356709 in words is "one hundred thirty-three million, three hundred fifty-six thousand, seven hundred nine".