133117903 has 2 divisors, whose sum is σ = 133117904. Its totient is φ = 133117902.

The previous prime is 133117889. The next prime is 133117967. The reversal of 133117903 is 309711331.

It is a weak prime.

It is an emirp because it is prime and its reverse (309711331) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-133117903 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (133117993) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66558951 + 66558952.

It is an arithmetic number, because the mean of its divisors is an integer number (66558952).

Almost surely, 2^133117903 is an apocalyptic number.

133117903 is a deficient number, since it is larger than the sum of its proper divisors (1).

133117903 is an equidigital number, since it uses as much as digits as its factorization.

133117903 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1701, while the sum is 28.

The square root of 133117903 is about 11537.6732056338. The cubic root of 133117903 is about 510.5976627826.

The spelling of 133117903 in words is "one hundred thirty-three million, one hundred seventeen thousand, nine hundred three".