133501142009 has 2 divisors, whose sum is σ = 133501142010. Its totient is φ = 133501142008.

The previous prime is 133501141999. The next prime is 133501142011. The reversal of 133501142009 is 900241105331.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 127377610000 + 6123532009 = 356900^2 + 78253^2 .

It is an emirp because it is prime and its reverse (900241105331) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-133501142009 is a prime.

Together with 133501142011, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (133501142609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66750571004 + 66750571005.

It is an arithmetic number, because the mean of its divisors is an integer number (66750571005).

Almost surely, 2^133501142009 is an apocalyptic number.

It is an amenable number.

133501142009 is a deficient number, since it is larger than the sum of its proper divisors (1).

133501142009 is an equidigital number, since it uses as much as digits as its factorization.

133501142009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3240, while the sum is 29.

The spelling of 133501142009 in words is "one hundred thirty-three billion, five hundred one million, one hundred forty-two thousand, nine".