133622917 has 2 divisors, whose sum is σ = 133622918. Its totient is φ = 133622916.

The previous prime is 133622903. The next prime is 133622921. The reversal of 133622917 is 719226331.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 124344801 + 9278116 = 11151^2 + 3046^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-133622917 is a prime.

It is equal to p_7571842 and since 133622917 and 7571842 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (133622987) 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, 66811458 + 66811459.

It is an arithmetic number, because the mean of its divisors is an integer number (66811459).

Almost surely, 2^133622917 is an apocalyptic number.

It is an amenable number.

133622917 is a deficient number, since it is larger than the sum of its proper divisors (1).

133622917 is an equidigital number, since it uses as much as digits as its factorization.

133622917 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13608, while the sum is 34.

The square root of 133622917 is about 11559.5379232909. The cubic root of 133622917 is about 511.2425386532.

The spelling of 133622917 in words is "one hundred thirty-three million, six hundred twenty-two thousand, nine hundred seventeen".